Recent Submissions

  • Sweetened beverages, snacks and overweight: findings from the Young Lives cohort study in Peru

    Alviso-Orellana, Claudia; Estrada-Tejada, Dayna; Carrillo-Larco, Rodrigo M; Bernabe-Ortiz, Antonio (Cambridge University Press, 2018-03-20)
    Objective: To determine the association between consumption of snacks and sweetened beverages and risk of overweight among children. Design: Secondary analysis of the Young Lives cohort study in Peru. Setting: Twenty sentinel sites from a total of 1818 districts available in Peru. Subjects: Children in the younger cohort of the Young Lives study in Peru, specifically those included in the third (2009) and the fourth (2013) rounds. Results: A total of 1813 children were evaluated at baseline; 49·2 % girls and mean age 8·0 (sd 0·3) years. At baseline, 3·3 (95 % CI 2·5, 4·2) % reported daily sweetened beverage consumption, while this proportion was 3·9 (95 % CI 3·1, 4·9) % for snacks. Baseline prevalence of overweight was 22·0 (95 % CI 20·1, 23·9) %. Only 1414 children were followed for 4·0 (sd 0·1) years, with an overweight incidence of 3·6 (95 % CI 3·1, 4·1) per 100 person-years. In multivariable analysis, children who consumed sweetened beverages and snacks daily had an average weight increase of 2·29 (95 % CI 0·62, 3·96) and 2·04 (95 % CI 0·48, 3·60) kg more, respectively, than those who never consumed these products, in approximately 4 years of follow-up. Moreover, there was evidence of an association between daily consumption of sweetened beverages and risk of overweight (relative risk=2·12; 95 % CI 1·05, 4·28). Conclusions: Daily consumption of sweetened beverages and snacks was associated with increased weight gain v. never consuming these products; and in the case of sweetened beverages, with higher risk of developing overweight.
  • Latin American Consensus for Pediatric Cardiopulmonary Resuscitation 2017

    López-Herce, Jesús; Almonte, Enma; Alvarado, Manuel; Bogado, Norma Beatriz; Cyunel, Mariana; Escalante, Raffo; Finardi, Christiane; Guzmán, Gustavo; Jaramillo-Bustamante, Juan C.; Madrid, Claudia C.; Matamoros, Martha; Moya, Luis Augusto; Obando, Grania; Reboredo, Gaspar; López, Lissette R.; Scheu, Christian; Valenzuela, Alejandro; Yerovi, Rocío; Yock-Corrales, Adriana (Lippincott Williams and Wilkins, 2018-03)
    Objectives: To develop a Latin American Consensus about Pediatric Cardiopulmonary Resuscitation. To clarify, reinforce, and adapt some specific recommendations for pediatric patients and to stimulate the implementation of these recommendations in clinical practice. Design: Expert consensus recommendations with Delphi methodology. Setting: Latin American countries. Subjects: Experts in pediatric cardiopulmonary resuscitation from 19 Latin American countries. Interventions: Delphi methodology for expert consensus. Measurements and Main Results: The goal was to reach consensus with all the participating experts for every recommendation. An agreement of at least 80% of the participating experts had to exist in order to deliver a recommendation. Two Delphi voting rounds were sent out electronically. The experts were asked to score between 1 and 9 their level of agreement for each recommendation. The score was then classified into three groups: strong agreement (score 7–9), moderate agreement (score 4–6), and disagreement (score 1–3). Nineteen experts from 19 countries participated in both voting rounds and in the whole process of drafting the recommendations. Sixteen recommendations about organization of cardiopulmonary resuscitation, prevention, basic resuscitation, advanced resuscitation, and postresuscitation measures were approved. Ten of them had a consensus of 100%. Four of them were agreed by all the participants except one (94.7% consensus). One recommendation was agreed by all except two experts (89.4%), and finally, one was agreed by all except three experts (84.2%). All the recommendations reached a level of agreement. Conclusions: This consensus adapts 16 international recommendations to Latin America in order to improve the practice of cardiopulmonary resuscitation in children. Studies should be conducted to analyze the effectiveness of the implementation of these recommendations.
  • Association between perceived social support and induced abortion: A study in maternal health centers in Lima, Peru

    Sánchez-Siancas, Luis E.; Rodríguez-Medina, Angélica; Piscoya, Alejandro; Bernabe-Ortiz, Antonio (PLoS ONE, 2018-04-12)
    Objectives This study aimed to assess the association between perceived social support and induced abortion among young women in Lima, Peru. In addition, prevalence and incidence of induced abortion was estimated. Methods/Principal findings A cross-sectional study enrolling women aged 18–25 years from maternal health centers in Southern Lima, Peru, was conducted. Induced abortion was defined as the difference between the total number of pregnancies ended in abortion and the number of spontaneous abortions; whereas perceived social support was assessed using the DUKE-UNC scale. Prevalence and incidence of induced abortion (per 100 person-years risk) was estimated, and the association of interest was evaluated using Poisson regression models with robust variance. A total of 298 women were enrolled, mean age 21.7 (± 2.2) years. Low levels of social support were found in 43.6% (95%CI 38.0%–49.3%), and 17.4% (95%CI: 13.1%–21.8%) women reported at least one induced abortion. The incidence of induced abortion was 2.37 (95%CI: 1.81–3.11) per 100 person-years risk. The multivariable model showed evidence of the association between low perceived social support and induced abortion (RR = 1.94; 95%CI: 1.14–3.30) after controlling for confounders. Conclusions There was evidence of an association between low perceived social support and induced abortion among women aged 18 to 25 years. Incidence of induced abortion was similar or even greater than rates of countries where abortion is legal. Strategies to increase social support and reduce induced abortion rates are needed.
  • Comentario de Terrones Arias AE en: Incidencia del periodo vacacional de Navidad en el estado ponderal de escolares de Primaria

    Terrones Arias, Angel Eduardo; Carbajal Huamani, Oliverio (Asociacion Espanola de Dietistas-Nutricionistas, 2018-03-16)
    Carta al editor
  • Comment to: “Laser-Assisted Liposuction (LAL) Versus Traditional Liposuction: Systematic Review”

    Centurion, P.; Caballero, G.; Weiss, M. (Springer New York LLC, 2018-03-02)
    Carta al editor
  • An evaluation of distal hair cortisol concentrations collected at delivery

    Orta, Olivia R.; Tworoger, Shelley S.; Terry, Kathryn L.; Coull, Brent A.; Gelaye, Bizu; Kirschbaum, Clemens; Sanchez, Sixto E.; Williams, Michelle A.; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA;; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA;; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA;; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA;; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA;; Technische Universität Dresden, Dresden, Germany;; Facultad de Medicina, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru;; Harvard T.H. Chan School of Public Health, Harvard University, MA, USA; (Taylor and Francis Ltd., 2018-04-04)
    Distal hair segments collected at delivery may allow for the assessment of maternal cortisol secretion in early pregnancy, an important time window for fetal development. Therefore, an investigation of the validity of distal hair cortisol concentrations is warranted. We examined the concordance between proximal and distal hair cortisol concentrations (HCC), both representing the first trimester of pregnancy. The study population was comprised of a random sample of 97 women participating in the Pregnancy Outcomes Maternal and Infant Study, a prospective cohort study of pregnant women attending prenatal clinics in Lima, Peru. Each participant provided two hair samples: once at enrollment [mean gestational age (GA) = 13.1 weeks] and again at full-term delivery (mean GA = 39.0 weeks). Hair segments reflecting the first trimester were: 3 cm hair segments closest to the scalp on the first hair sample (proximal) and 6–9 cm from the scalp on the second hair sample (distal). HCC was determined using Luminescence Immunoassay. A subset (N = 28) had both hair segments additionally analyzed using liquid chromatography tandem mass spectrometry (LC-MS/MS). HCC values were log-transformed (logHCC), and proximal–distal differences tested using paired sample t-tests. Concordance was evaluated within and across assay types. LogHCC, measured using immunoassay, in distal hair segments was lower compared to proximal hair segments (1.35 versus 1.64 respectively; p = .02). No difference was observed using LC-MS/MS (1.99 versus 1.83, respectively; p=.33). Proximal–distal concordance was low within assay (immunoassay: Pearson = 0.27 and κ = 0.10; LC-MS/MS: Pearson = 0.37 and κ = 0.07). High correlation was observed across assays for both distal (Pearson = 0.78, p < .001; κ = 0.64) and proximal segments (Pearson = 0.96, p < .001; κ = 0.75). In conclusion, distal first-trimester hair segments collected at delivery have lower absolute HCC compared to HCC in proximal first trimester hair segments collected in early pregnancy, and are poorly concordant with HCC in proximal segments. Findings may inform the design of future studies.
  • Ingesta de arsénico: el impacto en la alimentación y la salud humana

    Medina-Pizzali, María; Robles, Pamela; Mendoza, Mónica; Torres, Celeste (Instituto Nacional de Salud (INS), 2018-04-09)
    Arsenic is an element that is widely distributed throughout the environment. Its compounds are mainly in the state of pentavalent and trivalent oxidation; and in inorganic and organic forms. Arsenical species vary in their degree of toxicity, with inorganic compounds being more political than organic, and trivalent compounds more toxic than pentavalent compounds. There would be interconversion between the less toxic species and other more toxic species and the cooking and processing methods could affect it. Arsenic is a carcinogenic agent and causes multiple negative effects on human health in the short and long term. Non-occupational human exposure to arsenic occurs mainly through water and food. The regulation is variable for each country and is based on WHO standards, the Codex Alimentarius, and the European Union. Many studies focus on determining the total arsenic content but do not identify arsenical species in foods. Globally, fish and seafood, chicken, meat, rice, and seaweed have high levels of arsenic. In Peru, there are few studies on total arsenic content and arsenical species in food despite the fact that we have areas with high levels of environmental contamination. The objective of this review is to discuss exposure to arsenic through food and water intake, related regulations, toxicity, consequences on human health and main foods that contribute to its intake.
  • Letter to the Editors regarding the paper: Sociodemographic Characteristics of Indigenous Population According to the 2000 and 2010 Brazilian Demographic Censuses: A Comparative Approach

    Casella-Fernández, Alfredo; Limas-Haro, Daniela; Lucchetti, Aldo; Universidad Peruana de Ciencias Aplicadas, Peru; Universidad Peruana de Ciencias Aplicadas, Peru; Universidad Peruana de Ciencias Aplicadas, Peru; Hospital Nacional Arzobispo Loayza, Perú (Fundacao Oswaldo Cruz, 2018-03-08)
    Carta al editor
  • Perceived stress and high fat intake: A study in a sample of undergraduate students

    Vidal, E. Jair; Alvarez, Daily; Martinez-Velarde, Dalia; Vidal-Damas, Lorena; Yuncar-Rojas, Kelly A.; Julca-Malca, Alesia; Bernabe-Ortiz, Antonio (Public Library of Science, 2018-03-09)
    Objectives Different studies have reported the association between perceived stress and unhealthy diet choices. We aimed to determine whether there is a relationship between perceived stress and fat intake among undergraduate medical students. Methods/Principal findings A cross-sectional study was performed including first-year medical students. The outcome of interest was the self-report of fat intake assessed using the Block Screening Questionnaire for Fat Intake (high vs. low intake), whereas the exposure was perceived stress (low/ normal vs. high levels). The prevalence of high fat intake was estimated and the association of interest was determined using prevalence ratios (PR) and 95% confidence intervals (95% CI). Models were created utilizing Poisson regression with robust standard errors. Data from 523 students were analyzed, 52.0% female, mean age 19.0 (SD 1.7) years. The prevalence of high fat intake was 42.4% (CI: 38.2%–46.7%). In multivariate model and compared with those with lowest levels of stress, those in the middle (PR = 1.59; 95%CI: 1.20–2.12) and highest (PR = 1.92; 95%CI: 1.46–2.53) categories of perceived stress had greater prevalence of fat intake. Gender was an effect modifier of this association (p = 0.008). Conclusions Greater levels of perceived stress were associated with higher fat intake, and this association was stronger among males. More than 40% of students reported having high fat consumption. Our results suggest the need to implement strategies that promote decreased fat intake.
  • Endoscopic Treatment for Vesicoureteral Reflux in Recurrent Urinary Tract Infections in Kidney Transplant: Experience of One Center

    Gomez Lujan, M.; Velarde, L.; Cruzalegui, C.; Berrios, C.; Sifuentes, E.; Gálvez, J.; Soto, H.; Castañeda, E.; Bazán, G.; Nakachi, A.; Chambi, M.; Medina, C.; Torres, A. (Elsevier USA, 2018-03)
    Vesicoureteral reflux (VUR) after renal transplantation in adult patients has been reported. In renal transplant recipients, symptomatic urinary tract infection can cause high morbidity despite improved immunosuppressive and antibiotic treatment. In our country there have been few reported cases about use of copolymer of dextranomer and hyaluronic acid (DX-HA) injection in a renal transplant. We present 3 cases of recurrent or complicated infections with evidence of high-grade VUR, which were treated with DX-HA. Only 1 case had a partial remission; however, there were no episodes of urinary tract infection in 12 months of follow-up. Suburethral injection is an endoscopic treatment modality with low morbidity in our country.
  • Identification of infection by Chikungunya, Zika, and Dengue in an area of the Peruvian coast. Molecular diagnosis and clinical characteristics

    Sánchez-Carbonel, José; Tantaléan-Yépez, Derek; Aguilar-Luis, Miguel Angel; Silva-Caso, Wilmer; Weilg, Pablo; Vásquez-Achaya, Fernando; Costa, Luis; Martins-Luna, Johanna; Sandoval, Isabel; del Valle-Mendoza, Juana (BioMed Central Ltd., 2018-03-14)
    Objective: To assess the presence of Dengue, Chikungunya, and Zika in serum samples of patients with acute febrile illness in Piura, Peru and describe the most common clinical features. Results: Dengue was the most common arbovirus detected in 170/496 (34.3%), followed by Zika in 39/496 (7.9%) and Chikungunya in 23/496 (4.6%). Among the 170 samples positive for Dengue, serotype 2 was the most predominant type present in 97/170 (57.1%) of samples, followed by the serotype 3 in 9/170 (5.3%). Headaches, muscle pain, and joint pain were the most common symptoms associated with fever in patients with Dengue and Zika. No symptoms predominance was observed in patients with Chikungunya.Dengue is considered the most frequent arbovirus in Peru and the number of cases has increased dramatically in the last 5 years. However, it is not the only arbovirus that circulates along the northern coast of Peru. It has also been determined the presence of Zika and Chikungunya in our population, which may suggest the circulation of other arboviruses that have not been detected.
  • Development of a clinical prediction rule for the diagnosis of pleural tuberculosis in Peru

    Solari, Lely; Soto, Alonso; Van der Stuyft, Patrick (Elsevier B.V., 2018-04)
    Objectives: To develop a clinical prediction rule (CPR) for the diagnosis of pleural tuberculosis (PT) in patients with pleural exudates in Peru. Methods: Clinical and laboratory information was collected from patients with exudative pleural effusion attending two reference hospitals in Lima, Peru. Predictive findings associated with PT in a multiple logistic regression model were used to develop the CPR. A definite diagnosis of PT was based on a composite reference standard including bacteriological and/or histological analysis of pleural fluid and pleural biopsy specimens. Results: A total of 238 patients were included in the analysis, of whom 176 had PT. Age, sex, previous contact with a TB patient, presence of lymphadenopathy, and pleural adenosine deaminase (ADA) levels were found to be independently associated with PT. These predictive findings were used to construct a CPR, for which the area under the receiver operating characteristics curve (AUC) was 0.92. The single best cut-off point was a score of ≥60 points, which had a sensitivity of 88%, specificity of 92%, a positive likelihood ratio of 10.9, and a negative likelihood ratio of 0.13. Conclusions: The CPR is accurate for the diagnosis of PT and could be useful for treatment initiation while avoiding pleural biopsy. A prospective evaluation is needed before its implementation in different settings.
  • Case report: Clitoromegaly as a consequence of Congenital Adrenal Hyperplasia. An accurate medical and surgical approach

    Fernandez-Aristi, Augusto Rafael; Taco-Masias, Andre Alonso; Montesinos-Baca, Luis (Elsevier Inc, 2018-05)
    We present a case of a woman with a history of Congenital Adrenal Hyperplasia (CAH) diagnosed at the age of 12, who was referred to our unit for surgical treatment. Despite the initial diagnosis was an indirect inguinal hernia, it was a misdiagnosis. Once in our service, this was corrected into clitoromegaly secondary to CAH. Physical examination and imaging test discarded other abnormalities, such as secondary effects androgenization. Regarding surgical treatment, the techniques used were Spencer and Allen combined with Kumar, which are the most used for clitoroplasty but also less used in Peru.
  • Re: “Racial Differences in 20-Year Cardiovascular Mortality Risk Among Childhood and Young Adult Cancer Survivors” by Berkman et al. (J Adolesc Young Adult Oncol. 2017;6(3):414–21)

    Valiente, Daniela Fernanda; Coico, Rodrigo Alexander; Araujo-Castillo, Roger Vladimir; Department of Research, School of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.; Department of Research, School of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.; Department of Research, School of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru. (Mary Ann Liebert Inc., 2018-02)
    Carta al editor
  • Association Between Endometriosis and Preterm Birth in Women With Spontaneous Conception or Using Assisted Reproductive Technology: A Systematic Review and Meta-Analysis of Cohort Studies

    Pérez-López, Faustino R.; Villagrasa-Boli, Pablo; Muñoz-Olarte, María; Morera-Grau, Álex; Cruz-Andrés, Pablo; Hernandez, Adrian V.; Facultad de Medicina, Universidad de Zaragoza, Red de Investigación en Ginecología, Obstetricia y Reproducción, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain; Facultad de Medicina, Universidad de Zaragoza, Red de Investigación en Ginecología, Obstetricia y Reproducción, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain; Facultad de Medicina, Universidad de Zaragoza, Red de Investigación en Ginecología, Obstetricia y Reproducción, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain; Facultad de Medicina, Universidad de Zaragoza, Red de Investigación en Ginecología, Obstetricia y Reproducción, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain; Facultad de Medicina, Universidad de Zaragoza, Red de Investigación en Ginecología, Obstetricia y Reproducción, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain; School of Medicine, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru (SAGE Publications Inc., 2018-01-05)
    OBJECTIVE: To perform a systematic review and meta-analysis to estimate the effect of endometriosis on preterm birth (PB) risk. METHODS: Searches were conducted in PubMed-MEDLINE, Embase, Scopus, Web of Science, Cochrane Library, Google Scholar, and SciELO for studies published in all languages from inception through April 2017. We included cohort studies evaluating pregnant women with and without endometriosis and conception either by spontaneous conception (SC) or with assisted reproductive technology (ART). Primary outcome was PB (<37 weeks), and secondary outcomes were intrauterine growth restriction (IUGR), low birthweight, small for gestational age (SGA), and birthweight. Pooled odds ratios (ORs) and its 95% confidence interval (CI) were calculated as effects, and random-effects models were used for meta-analyses. Risk of bias was assessed with the Newcastle-Ottawa Scale, and heterogeneity of effects among studies was described with the I2 statistic. RESULTS: We identified 9 cohort studies including a total of 1 496 715 pregnancies (13 798 with endometriosis diagnosis). In women with endometriosis, the PB risk was significantly increased in both SC (OR: 1.59; 95% CI: 1.32-1.90) and ART (OR: 1.43; 95% CI: 1.14-1.79). The SGA risk was increased in women with endometriosis (OR: 1.16; 95% CI: 1.05-1.28), while the IUGR and low birthweight risks and birthweight were not affected by endometriosis. CONCLUSION: Endometriosis is associated with increased PB risk in both SC and women who obtained pregnancy using ART. Prospective studies evaluating relevant outcomes are needed to confirm these results.
  • Epidemiología chilena y peruana de la infección por VIH

    Belsuzarri, Paul; Oyarce, Sergio (Sociedad Chilena de Infectologia, 2017-12)
    Cartas al editor
  • Preventive effect of Oenothera rosea on N-methyl-N-nitrosourea- (NMU) induced gastric cancer in rats

    Almora Pinedo, Yuan; Arroyo-Acevedo, Jorge Luis; Herrera-Calderon, Oscar; Chumpitaz Cerrate, Victor Manuel; Hañari Quispe, Renán; Tinco Jayo, Johnny Aldo; Franco Quino, Cesar; Figueroa Salvador, Linder (Dove Medical Press Ltd, 2017-12)
    Background: Currently, gastric cancer (GC) is considered a public health problem worldwide. Using medicinal plants for the prevention of chronic diseases such as cancer constitutes new alternatives in traditional medicine. Oenothera rosea (OR) could be an option, but it needs to be evaluated. Aim: The main objective of this study was to evaluate the protective effect of OR extract on N-methyl-N-nitrosourea (NMU)-induced GC in rats. Methods: In total, 80 male Holtzman rats were randomized into five groups. Group A received the saline solution (5mL/kg), group B received NMU 500 μg/kg (cancer inductor) by oral administration for 16 weeks, and groups C, D, and E were treated with OR extract (100, 200, and 300 mg/kg, respectively) and NMU in order to evaluate the preventive effect on cancer induced by NMU for 16 weeks. Blood and histological samples of stomachs were collected to determine histopathological, biochemical, and hematological parameters between different experimental groups. Results: Groups C, D, and E presented less histopathological changes such as anaplastic and hyperplastic cells, compared with group B. Hematological and biochemical parameters were recorded, and superoxide dismutase, malondialdehyde, and nitric oxide levels were statistically less than those of NMU group (P<0.05, P<0.01, and P<0.01). Conclusion: Considering the histopathological signs and the antioxidant activity in vivo as well as hematological and biochemical parameters of ethanolic extract of OR, we concluded that its administration in rats has a protective effect on GC, which is induced experimentally. This species could be studied in clinical trials for patients with GC in the future.
  • Body Parts Matter: Social, Behavioral, and Biological Considerations for Urethral, Pharyngeal, and Rectal Gonorrhea and Chlamydia Screening Among MSM in Lima, Peru

    Passaro, R. Colby; Segura, Eddy R.; Perez-Brumer, Amaya; Cabeza, Jeanne; Montano, Silvia M.; Lake, Jordan E.; Sanchez, Jorge; Lama, Javier R.; Clark, Jesse L. (American Sexually Transmitted Diseases Association, 2018-02)
    Background Gonorrhea (GC) and chlamydia (CT) disproportionately affect men who have sex with men (MSM), and public health implications vary by anatomic site and bacterial agent. Urethral and rectal GC and CT can increase risk of HIV transmission, while pharyngeal GC may be a reservoir for antimicrobial resistance. To define screening priorities in Latin America, we compare differences in the prevalence and correlates of urethral, pharyngeal, and rectal GC and CT among MSM in Peru. Methods A cross-sectional sample of 787 MSM from Lima was screened between 2012-2014. We described prevalence of urethral, pharyngeal, and rectal GC and CT infection and conducted bivariate analyses of associations with social, behavioral, and biological characteristics. Poisson regression analyses assessed the correlates of each infection at each anatomic site. Results The most commonly symptomatic infection (urethral GC; 42.1%) was the least prevalent (2.4%). The most prevalent infections were rectal CT (15.8%) and pharyngeal GC (9.9%). Rectal CT was the least commonly symptomatic (2.4%) infection, and was associated with younger age (aPR, 95% CI: 0.96, 0.94-0.98), HIV infection (1.46, 1.06-2.02), and pasivo (receptive; 3.59, 1.62-7.95) and moderno (versatile; 2.63, 1.23-5.60) sexual roles. Conclusions Results highlight limitations of current syndromic screening strategies for STDs in Peru, wherein urethral CT and rectal GC and CT may be missed due to their frequently asymptomatic presentations. Successful management of GC and CT infections among MSM in low-resource settings requires differentiating between bacterial agent, symptomatic presentation, associated risk factors, and public health implications of untreated infection at different anatomic sites.
  • Comentario sobre «Disfunción de la articulación temporomandibular en pacientes con artritis reumatoide»

    Bustamante-Flores, Carmen R.; Labrin-Valdiviezo, Vanessa; (Elsevier B.V., 2018-02)
    Cartas al editor

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