1. Department of Obstetrics and Gynecology; Maimonides Medical Center; Brooklyn; NY
2. Department of Obstetrics and Gynecology; Alexandria University; Alexandria; Egypt
3. Department of Ophthalmology; Northwestern University; Feinberg School of Medicine; Chicago; IL
4. Department of Obstetrics; Gynecology and Reproductive sciences Yale University; School of Medicine; New Haven; CT