1 Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Maine Medical Center, 887 Congress St., Ste. 200, Portland, ME 04102. Electronic address: joerwax@gmail.com.
2 Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Maine Medical Center, 887 Congress St., Ste. 200, Portland, ME 04102.