1. OBGYN, MFM, Winnie Palmer Hospital for Women & Babies, Orlando, FL, USA
2. OBGYN, MFM, Wake Forest University, Winston Salem, NC, USA
3. OBGYN, University of North Carolina, Chapel Hill, NC, USA
4. Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
5. Intermountain Healthcare Division of Maternal Fetal Medicine, Salt Lake City, UT, USA