1. Department of Medicine, Oregon Health and Science University, Portland, Oregon.
2. Department of Gynecology & Obstetrics, Columbia University, New York, New York.
3. Agency for Healthcare Research and Quality, Rockville, Maryland.
4. Section of General Internal Medicine, Portland VA Medical Center, Portland, Oregon.
5. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
6. Community Medical Alliance, Boston, Massachusetts.