?:authorAffiliation
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[\'Graduate School of Urban Public Health, University of Seoul, Seoul,Republic of Korea.\', \'Division of Infectious Diseases, Department of Pediatrics, Warren Alpert Medical School, Brown University, Providence, Rhode Island,USA.\', \'Center for International Health Research, Rhode Island Hospital, Providence, Rhode Island, USA.\', \'Department of Pediatrics, Korea University Anam Hospital, Seoul, Republic of Korea.\']
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