[1] Univ Cincinnati, Dept Pediat, James M Anderson Ctr Hlth Syst Excellence, Cincinnati Childrens Hosp Med Ctr,Sch Med, Cincinnati, OH USA
[2] Ohio Publ Hlth Partnership, Columbus, OH USA
[3] Rainbow Babies & Childrens Hosp, 2101 Adelbert Rd, Cleveland, OH 44106 USA
[4] Ohio Perinatal Qual Collaborat, Toledo, OH USA
[5] Ohio Dept Hlth, Ctr Vital & Hlth Stat, Columbus, OH 43266 USA
[6] Good Samaritan Hosp, Qual & Safety Womens Serv TriHlth, Cincinnati, OH USA
[7] Aultman Hosp, Dept Obstet & Gynecol, Aultman Maternal Fetal Med, Canton, OH USA
[8] Metro Hlth Med Ctr, Ohio Perinatal Qual Collaborat, Cleveland, OH USA
[9] Ohio State Univ, Dept Obstet & Gynecol, Wexner Med Ctr, Ohio Perinatal Qual Collaborat,Maternal Fetal Me, Columbus, OH 43210 USA