[1] Harvard Univ, TH Chan Sch Publ Hlth, Dept Epidemiol, 677 Huntington Ave, Boston, MA 02115 USA
[2] Beth Israel Deaconess Med Ctr, Dept Obstet & Gynecol, Boston, MA 02215 USA
[3] Harvard Univ, TH Chan Sch Publ Hlth, Dept Biostat, Boston, MA 02115 USA
[4] Brigham & Womens Hosp, Channing Div Network Med, 75 Francis St, Boston, MA 02115 USA
[5] Harvard Univ, Sch Med, Boston, MA USA
[6] Harvard Univ, TH Chan Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA
[7] Brigham & Womens Hosp, Connors Ctr Womens Hlth & Gender Biol, 75 Francis St, Boston, MA 02115 USA
[8] Brigham & Womens Hosp, Dept Obstet Gynecol & Reprod Biol, 75 Francis St, Boston, MA 02115 USA