?:authorAffiliation
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[\'Department of Obstetrics and Gynecology, Yale School of Medicine, 333 Cedar St., P.O. Box 208063, New Haven, CT, 06520-8063, USA. jennifer.ding@yale.edu.\', \'Lifespan Biostatistics, Epidemiology and Research Design, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA.\', \'Department of Obstetrics and Gynecology, Women and Infants Hospital, Alpert Medical School of Brown University, Providence, RI, USA.\']
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