1. Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA.
2. Department of Internal Medicine, VA Connecticut Health Care System, West Haven, Connecticut, USA.
3. Department of Internal Medicine, Anchor Health, Hamden, Connecticut, USA.
4. Department of Surgery, Yale New Haven Hospital, New Haven, Connecticut, USA.
5. Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.