1. Department of Obstetrics and Gynecology; SUNY Upstate Medical University; Syracuse; NY; USA
2. Department of Pathology; Yale University School of Medicine; New Haven; CT; USA
3. Cushing/Whitney Medical Library; Yale University; New Haven; CT; USA
4. Department of Obstetrics, Gynecology, & Reproductive Sciences; Yale University School of Medicine; New Haven; CT; USA