1. Department of Obstetrics and Gynecology, Maternal-Fetal Medicine Division, Mayo Clinic, Rochester, MN, USA
2. Department of Obstetrics and Gynecology, Maternal-Fetal Medicine Division, Spectrum Health/Michigan State University, Grand Rapids, MI, USA
3. Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, FL, USA