1
Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
,
Brian K. Iriye
2
High Risk Pregnancy Center, Las Vegas, Nevada
,
Sindhu K. Srinivas
1
Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania