1. Department of Radiology, Loyola University Medical Center, Maywood, IL, USA,
2. Department of Obstetrics and Gynecology, Saint Francis Hospital and Medical Center, Quinnipiac University, Hartford, CT, USA,
3. Department of Obstetrics and Gynecology, Fountain Valley Regional Hospital and Medical Center, Fountain Valley, CA, USA, and
4. Department of Radiology, Stony Brook University Health Sciences Center School of Medicine, Stony Brook, NY, USA