[1] Univ Washington, Dept Obstet & Gynecol & Global Hlth, Seattle, WA 98195 USA
[2] Univ Texas Med Branch Galveston, Dept Obstet & Gynecol, Galveston, TX USA
[3] Kings Coll London, Fac Life Sci & Med, Sch Life Course Sci, Dept Women & Childrens Hlth, St Thomas Hosp Campus, London, England
[4] Kings Coll London, Fac Life Sci & Med, Sch Life Course Sci, Dept Women & Childrens Hlth, London, England
[5] Univ Hosp Hradec Kralove, Biomed Res Ctr, Hradec Kralove, Czech Republic
[6] Charles Univ Prague, Fac Med Hradec Kralove, Dept Obstet & Gynecol, Hradec Kralove, Czech Republic
[7] Univ Pretoria, Dept Obstet & Gynaecol, Sch Med, Pretoria, South Africa
[8] Gothenburg Univ, Sahlgrenska Acad, Dept Obstet & Gynecol, Gothenburg, Sweden
[9] Norwegian Inst Publ Hlth, Dept Genet & Bioinformat, Domain Hlth Data & Digitalizat, Oslo, Norway
[10] Brigham & Womens Hosp, Dept Obstet & Gynecol, Boston, MA USA
[11] Harvard Med Sch, Boston, MA USA