{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T11:35:10Z","timestamp":1781177710162,"version":"3.54.1"},"reference-count":66,"publisher":"Public Library of Science (PLoS)","issue":"7","license":[{"start":{"date-parts":[[2017,7,7]],"date-time":"2017-07-07T00:00:00Z","timestamp":1499385600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"DOI":"10.1371\/journal.pone.0180220","type":"journal-article","created":{"date-parts":[[2017,7,7]],"date-time":"2017-07-07T13:36:46Z","timestamp":1499434606000},"page":"e0180220","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":11,"title":["Risk of bias and confounding of observational studies of Zika virus infection: A scoping review of research protocols"],"prefix":"10.1371","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3186-9174","authenticated-orcid":true,"given":"Ludovic","family":"Reveiz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michelle M.","family":"Haby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruth","family":"Mart\u00ednez-Vega","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos E.","family":"Pinz\u00f3n-Flores","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4658-0608","authenticated-orcid":true,"given":"Vanessa","family":"Elias","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emma","family":"Smith","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariona","family":"Pinart","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathalie","family":"Broutet","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Becerra-Posada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sylvain","family":"Aldighieri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria D.","family":"Van Kerkhove","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2017,7,7]]},"reference":[{"issue":"24","key":"ref1","doi-asserted-by":"crossref","first-page":"2536","DOI":"10.1056\/NEJMoa0805715","article-title":"Zika virus outbreak on Yap Island, Federated States of Micronesia","volume":"360","author":"MR Duffy","year":"2009","journal-title":"N Engl J Med"},{"issue":"6","key":"ref2","first-page":"1085","article-title":"Zika virus, French polynesia, South pacific, 2013 [Letter]","volume":"20","author":"VM Cao-Lormeau","year":"2014","journal-title":"Emerg Infect Dis"},{"key":"ref3","unstructured":"WHO. Zika Situation Report: Zika virus, Microcephaly and Guillain-Barr\u00e9 syndrome\u201427 October 2016: World Health Organization; 2016 [31 October 2016]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.who.int\/emergencies\/zika-virus\/situation-report\/27-october-2016\/en\/\" xlink:type=\"simple\">http:\/\/www.who.int\/emergencies\/zika-virus\/situation-report\/27-october-2016\/en\/<\/ext-link>."},{"key":"ref4","unstructured":"WHO Director-General summarizes the outcome of the Emergency Committee regarding clusters of microcephaly and Guillain\u2013Barr\u00e9 syndrome [Internet]. World Health Organization; 2016; February 1, [cited February 2, 2016]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.who.int\/mediacentre\/news\/statements\/2016\/emergency-committee-zika-microcephaly\/en\/\" xlink:type=\"simple\">http:\/\/www.who.int\/mediacentre\/news\/statements\/2016\/emergency-committee-zika-microcephaly\/en\/<\/ext-link>"},{"key":"ref5","unstructured":"CDC. Revised diagnostic testing for Zika, chikungunya, and dengue viruses in US Public Health Laboratories Centers for Disease Control, Division of Vector-Borne Diseases, 2016 7 February 2016. Report No."},{"issue":"12","key":"ref6","doi-asserted-by":"crossref","first-page":"1356","DOI":"10.1016\/S1473-3099(16)30318-8","article-title":"Association between Zika virus infection and microcephaly in Brazil, January to May, 2016: preliminary report of a case-control study","volume":"16","author":"TV Barreto de Araujo","year":"2016","journal-title":"Lancet Infect Dis"},{"issue":"24","key":"ref7","doi-asserted-by":"crossref","first-page":"2321","DOI":"10.1056\/NEJMoa1602412","article-title":"Zika Virus Infection in Pregnant Women in Rio de Janeiro","volume":"375","author":"P Brasil","year":"2016","journal-title":"N Engl J Med"},{"issue":"10033","key":"ref8","doi-asserted-by":"crossref","first-page":"2125","DOI":"10.1016\/S0140-6736(16)00651-6","article-title":"Association between Zika virus and microcephaly in French Polynesia, 2013\u201315: a retrospective study","volume":"387","author":"S Cauchemez","year":"2016","journal-title":"Lancet"},{"issue":"49","key":"ref9","doi-asserted-by":"crossref","first-page":"1409","DOI":"10.15585\/mmwr.mm6549e1","article-title":"Preliminary Report of Microcephaly Potentially Associated with Zika Virus Infection During Pregnancy\u2014Colombia, January-November 2016","volume":"65","author":"EL Cuevas","year":"2016","journal-title":"MMWR Morb Mortal Wkly Rep"},{"issue":"10027","key":"ref10","doi-asserted-by":"crossref","first-page":"1531","DOI":"10.1016\/S0140-6736(16)00562-6","article-title":"Guillain-Barre Syndrome outbreak associated with Zika virus infection in French Polynesia: a case-control study","volume":"387","author":"VM Cao-Lormeau","year":"2016","journal-title":"Lancet"},{"issue":"16","key":"ref11","doi-asserted-by":"crossref","first-page":"1598","DOI":"10.1056\/NEJMc1609015","article-title":"Zika Virus and the Guillain-Barre Syndrome\u2014Case Series from Seven Countries","volume":"375","author":"T Dos Santos","year":"2016","journal-title":"N Engl J Med"},{"issue":"1","key":"ref12","doi-asserted-by":"crossref","first-page":"e1002203","DOI":"10.1371\/journal.pmed.1002203","article-title":"Zika Virus Infection as a Cause of Congenital Brain Abnormalities and Guillain-Barre Syndrome: Systematic Review","volume":"14","author":"F Krauer","year":"2017","journal-title":"PLoS Med"},{"issue":"25","key":"ref13","doi-asserted-by":"crossref","first-page":"1887","DOI":"10.1056\/NEJM200006223422507","article-title":"Randomized, controlled trials, observational studies, and the hierarchy of research designs","volume":"342","author":"J Concato","year":"2000","journal-title":"N Engl J Med"},{"issue":"9302","key":"ref14","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1016\/S0140-6736(02)07451-2","article-title":"Bias and causal associations in observational research","volume":"359","author":"DA Grimes","year":"2002","journal-title":"The Lancet"},{"issue":"4","key":"ref15","doi-asserted-by":"crossref","first-page":"409","DOI":"10.1086\/655134","article-title":"Designing and reporting clinical trials on treatments for cutaneous leishmaniasis","volume":"51","author":"U Gonzalez","year":"2010","journal-title":"Clin Infect Dis"},{"key":"ref16","article-title":"Harmonisation of Zika virus research protocols to address key public health concerns","author":"MD Van Kerkhove","year":"2016","journal-title":"Lancet Glob Health"},{"key":"ref17","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Case-control study to assess potential risk factors related to microcephaly caused by Zika virus infection during pregnancy: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref18","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Case-control study to assess potential risk factors related to Guillan-Barr\u00e9 Syndrome caused by Zika virus infection: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref19","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Prospective longitudinal cohort study of newborns and infants born to mothers exposed to ZIKV during pregnancy: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref20","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Prospective longitudinal cohort study of women and newborns exposed to ZIKV during the course of pregnancy: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref21","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Prospective longitudinal cohort study of Zika-infected patients to measure the persistence of Zika virus in body fluids: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref22","unstructured":"WHO, Institut Pasteur. Standardized Protocol: Cross-sectional seroprevalence study of Zika virus infection in the general population: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"key":"ref23","first-page":"33","article-title":"[The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) statement]","volume":"115\u2013116","author":"EI Benchimol","year":"2016","journal-title":"Z Evid Fortbild Qual Gesundhwes"},{"issue":"12","key":"ref24","doi-asserted-by":"crossref","first-page":"1446","DOI":"10.1373\/clinchem.2015.246280","article-title":"STARD 2015: An Updated List of Essential Items for Reporting Diagnostic Accuracy Studies","volume":"61","author":"PM Bossuyt","year":"2015","journal-title":"Clin Chem"},{"issue":"10","key":"ref25","doi-asserted-by":"crossref","first-page":"e202","DOI":"10.1016\/S1473-3099(16)30082-2","article-title":"Strengthening the Reporting of Observational Studies in Epidemiology for Newborn Infection (STROBE-NI): an extension of the STROBE statement for neonatal infection research","volume":"16","author":"EJ Fitchett","year":"2016","journal-title":"Lancet Infect Dis"},{"issue":"10","key":"ref26","doi-asserted-by":"crossref","first-page":"e296","DOI":"10.1371\/journal.pmed.0040296","article-title":"The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies","volume":"4","author":"E von Elm","year":"2007","journal-title":"PLoS Med"},{"key":"ref27","article-title":"A dictionary of epidemiology","author":"M Porta","year":"2014"},{"key":"ref28","first-page":"212","article-title":"Basic epidemiology","author":"R Bonita","year":"2006"},{"key":"ref29","unstructured":"MAGIC. Tool to Assess Risk of Bias in Cohort Studies [January 22, 2017]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/help.magicapp.org\/knowledgebase\/articles\/327941-tool-to-assess-risk-of-bias-in-cohort-studies\" xlink:type=\"simple\">http:\/\/help.magicapp.org\/knowledgebase\/articles\/327941-tool-to-assess-risk-of-bias-in-cohort-studies<\/ext-link>."},{"key":"ref30","unstructured":"Viswanathan M, Berkman ND, Dryden DM, Hartling L. Assessing risk of bias and confounding in observational studies of interventions or exposures: Further development of the RTI item bank. Methods research report. (Prepared by RTI\u2013UNC Evidence-based Practice Center under Contract No. 290-2007-10056-I). AHRQ Publication No. 13-EHC106-EF. Rockville, MD: Agency for Healthcare Research and Quality, 2013."},{"issue":"4","key":"ref31","doi-asserted-by":"crossref","first-page":"606","DOI":"10.2105\/AJPH.2016.303112","article-title":"History, epidemiology, and clinical manifestations of Zika: a systematic review","volume":"106","author":"ES Paixao","year":"2016","journal-title":"Am J Public Health"},{"issue":"19","key":"ref32","doi-asserted-by":"crossref","first-page":"1801","DOI":"10.1056\/NEJMp1603734","article-title":"The Zika Challenge","volume":"374","author":"CJ Haug","year":"2016","journal-title":"N Engl J Med"},{"issue":"28","key":"ref33","doi-asserted-by":"crossref","first-page":"7852","DOI":"10.1073\/pnas.1607931113","article-title":"Human antibody responses after dengue virus infection are highly cross-reactive to Zika virus","volume":"113","author":"L Priyamvada","year":"2016","journal-title":"Proc Natl Acad Sci U S A"},{"issue":"50","key":"ref34","doi-asserted-by":"crossref","first-page":"30426","DOI":"10.2807\/1560-7917.ES.2016.21.50.30426","article-title":"Serodiagnosis of Zika virus (ZIKV) infections by a novel NS1-based ELISA devoid of cross-reactivity with dengue virus antibodies: a multicohort study of assay performance, 2015 to 2016","volume":"21","author":"K Steinhagen","year":"2016","journal-title":"Euro Surveill"},{"key":"ref35","unstructured":"PAHO. Case definitions: Pan American Health Organization; 2016 [28 October 2016]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.paho.org\/hq\/index.php?option=com_content&view=article&id=11117:2015-zika-case-definitions-&Itemid=41532&lang=en\" xlink:type=\"simple\">http:\/\/www.paho.org\/hq\/index.php?option=com_content&amp;view=article&amp;id=11117:2015-zika-case-definitions-&amp;Itemid=41532&amp;lang=en<\/ext-link>."},{"key":"ref36","unstructured":"WHO, Institut Pasteur. Harmonization of ZIKV research protocols to address key public health concerns: World Health Organization and Institut Pasteur; 2016. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/origin.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"issue":"12","key":"ref37","doi-asserted-by":"crossref","first-page":"880","DOI":"10.2471\/BLT.16.175950","article-title":"Assay optimization for molecular detection of Zika virus","volume":"94","author":"VM Corman","year":"2016","journal-title":"Bulletin World Health Organization"},{"key":"ref38","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/j.jviromet.2016.09.015","article-title":"A sensitive virus yield assay for evaluation of Antivirals against Zika Virus","volume":"238","author":"S Goebel","year":"2016","journal-title":"J Virol Methods"},{"key":"ref39","unstructured":"WHO. Laboratory testing for Zika virus infection. Interim guidance. 23 March 2016. WHO\/ZIKV\/LAB\/16.1. World Health Organization, 2016."},{"key":"ref40","unstructured":"WHO. Zika virus research agenda. October 2016 2016 [cited 2017 10 January]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/\" xlink:type=\"simple\">http:\/\/www.who.int\/reproductivehealth\/zika\/zika-virus-research-agenda\/en\/<\/ext-link>."},{"issue":"1","key":"ref41","doi-asserted-by":"crossref","first-page":"60","DOI":"10.5858\/arpa.2016-0406-SA","article-title":"Laboratory diagnosis of zika virus infection","volume":"141","author":"ML Landry","year":"2017","journal-title":"Arch Pathol Lab Med"},{"issue":"2","key":"ref42","doi-asserted-by":"crossref","first-page":"182","DOI":"10.1602\/neurorx.1.2.182","article-title":"Biomarkers: Potential Uses and Limitations","volume":"1","author":"R Mayeux","year":"2004","journal-title":"NeuroRx"},{"key":"ref43","unstructured":"WHO, Institut Pasteur. Screening, assessment and management of neonates and infants with complications associated with Zika virus exposure in utero. Interim Guidance Update. World Health Organization, 2016."},{"issue":"33","key":"ref44","doi-asserted-by":"crossref","first-page":"870","DOI":"10.15585\/mmwr.mm6533e2","article-title":"Update: Interim Guidance for the Evaluation and Management of Infants with Possible Congenital Zika Virus Infection\u2014United States, August 2016","volume":"65","author":"K Russell","year":"2016","journal-title":"MMWR Morb Mortal Wkly Rep"},{"issue":"3","key":"ref45","doi-asserted-by":"crossref","first-page":"599","DOI":"10.1016\/j.vaccine.2010.06.003","article-title":"Guillain-Barre syndrome and Fisher syndrome: case definitions and guidelines for collection, analysis, and presentation of immunization safety data","volume":"29","author":"JJ Sejvar","year":"2011","journal-title":"Vaccine"},{"key":"ref46","unstructured":"WHO. Identification and management of Guillain-Barr\u00e9 syndrome in the context of Zika virus. Interim guidance update. 22 August 2016. WHO\/ZIKV\/MOC\/16.4 Rev.1. World Health Organization, 2016."},{"key":"ref47","unstructured":"WHO. Case Definitions: Pan American Health Organization\/World Health Organization; 2016 [updated 18 April 20161 July 2016]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.paho.org\/hq\/index.php?option=com_content&view=article&id=11117&Itemid=41532&lang=en\" xlink:type=\"simple\">http:\/\/www.paho.org\/hq\/index.php?option=com_content&amp;view=article&amp;id=11117&amp;Itemid=41532&amp;lang=en<\/ext-link>."},{"issue":"4","key":"ref48","first-page":"253","article-title":"TORCH Infections. Toxoplasmosis, Other (syphilis, varicella-zoster, parvovirus B19), Rubella, Cytomegalovirus (CMV), and Herpes infections","volume":"2","author":"BJ Stegmann","year":"2002","journal-title":"Curr Womens Health Rep"},{"issue":"11","key":"ref49","doi-asserted-by":"crossref","first-page":"972","DOI":"10.1002\/bdra.23587","article-title":"Population-based microcephaly surveillance in the United States, 2009 to 2013: An analysis of potential sources of variation","volume":"106","author":"JD Cragan","year":"2016","journal-title":"Birth Defects Res A Clin Mol Teratol"},{"issue":"6","key":"ref50","doi-asserted-by":"crossref","first-page":"1484","DOI":"10.1067\/mob.2003.452","article-title":"Microcephaly: an epidemiologic analysis","volume":"188","author":"MJ Krauss","year":"2003","journal-title":"Am J Obstet Gynecol"},{"issue":"3","key":"ref51","doi-asserted-by":"crossref","first-page":"e0004530","DOI":"10.1371\/journal.pntd.0004530","article-title":"Zika virus: medical countermeasure development challenges","volume":"10","author":"RW Malone","year":"2016","journal-title":"PLoS Negl Trop Dis"},{"issue":"9303","key":"ref52","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1016\/S0140-6736(02)07500-1","article-title":"Cohort studies: marching towards outcomes","volume":"359","author":"DA Grimes","year":"2002","journal-title":"Lancet"},{"issue":"1","key":"ref53","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1136\/emj.20.1.54","article-title":"Observational research methods. Research design II: cohort, cross sectional, and case-control studies","volume":"20","author":"CJ Mann","year":"2003","journal-title":"Emerg Med J"},{"issue":"1","key":"ref54","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1093\/oxfordjournals.epirev.a017971","article-title":"Exposure measurement in cohort studies: the challenges of prospective data collection","volume":"20","author":"E White","year":"1998","journal-title":"Epidemiol Rev"},{"issue":"5","key":"ref55","first-page":"295","article-title":"The Environment and Disease: Association or Causation?","volume":"58","author":"AB Hill","year":"1965","journal-title":"Proc R Soc Med"},{"key":"ref56","doi-asserted-by":"crossref","first-page":"f6726","DOI":"10.1136\/bmj.f6726","article-title":"Prospective cohort studies: advantages and disadvantages","volume":"347","author":"P Sedgwick","year":"2013","journal-title":"BMJ"},{"issue":"8","key":"ref57","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1023\/B:EJEP.0000036568.02655.f8","article-title":"Loss to follow-up in cohort studies: how much is too much?","volume":"19","author":"V Kristman","year":"2004","journal-title":"Eur J Epidemiol"},{"issue":"4","key":"ref58","doi-asserted-by":"crossref","first-page":"396","DOI":"10.1056\/NEJMc1605389","article-title":"Requests for abortion in Latin America related to concern about zika virus exposure","volume":"375","author":"AR Aiken","year":"2016","journal-title":"N Engl J Med"},{"issue":"1","key":"ref59","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1002\/ijgo.12018","article-title":"Zika virus infection in Brazil and human rights obligations","volume":"136","author":"D Diniz","year":"2017","journal-title":"Int J Gynaecol Obstet"},{"key":"ref60","article-title":"The Difficult Design of Epidemiologic Studies on Zika Virus and Pregnancy","author":"EW Harville","year":"2016","journal-title":"Paediatr Perinat Epidemiol"},{"key":"ref61","unstructured":"The Center for Reproductive Rights. The World&apos;s Abortion Laws: 2016 2016 [updated 20166 July 2016]. <ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/worldabortionlaws.com\/map\/\" xlink:type=\"simple\">http:\/\/worldabortionlaws.com\/map\/<\/ext-link>."},{"issue":"9","key":"ref62","doi-asserted-by":"crossref","first-page":"1019","DOI":"10.1093\/oxfordjournals.aje.a116396","article-title":"Selection of controls in case-control studies: I. Principles","volume":"135","author":"S Wacholder","year":"1992","journal-title":"Am J Epidemiol"},{"issue":"9","key":"ref63","doi-asserted-by":"crossref","first-page":"1029","DOI":"10.1093\/oxfordjournals.aje.a116397","article-title":"Selection of controls in case-control studies: II. Types of controls","volume":"135","author":"S Wacholder","year":"1992","journal-title":"Am J Epidemiol"},{"issue":"3","key":"ref64","doi-asserted-by":"crossref","first-page":"643","DOI":"10.2307\/2529548","article-title":"Efficiency of case-control studies with multiple controls per case: continuous or dichotomous data","volume":"31","author":"HK Ury","year":"1975","journal-title":"Biometrics"},{"key":"ref65","article-title":"Epidemiology: Study Design and Data Analysis","author":"M Woodward","year":"2005"},{"issue":"9","key":"ref66","doi-asserted-by":"crossref","first-page":"1042","DOI":"10.1093\/oxfordjournals.aje.a116398","article-title":"Selection of controls in case-control studies: III. Design options","volume":"135","author":"S Wacholder","year":"1992","journal-title":"Am J Epidemiol"}],"updated-by":[{"DOI":"10.1371\/journal.pone.0189027","type":"correction","label":"Correction","source":"publisher","updated":{"date-parts":[[2017,11,30]],"date-time":"2017-11-30T00:00:00Z","timestamp":1512000000000}}],"container-title":["PLOS ONE"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/dx.plos.org\/10.1371\/journal.pone.0180220","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,9,28]],"date-time":"2019-09-28T20:31:05Z","timestamp":1569702665000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0180220"}},"subtitle":[],"editor":[{"given":"Marcia Edilaine Lopes","family":"Consolaro","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2017,7,7]]},"references-count":66,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2017,7,7]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0180220","relation":{"correction":[{"id-type":"doi","id":"10.1371\/journal.pone.0189027","asserted-by":"object"}]},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,7,7]]}}}