1. National Center of Excellence in Women's Health, Hospital University of Wisconsin, Madison, Wisconsin
2. National Center of Excellence in Women's Health, Magee-Women's Hospital, Pittsburgh, Pennsylvania
3. National Center of Excellence in Women's Health, University of Maryland, Baltimore, Maryland
4. National Center of Excellence in Women's Health, University of Illinois, Chicago, Illinois
5. National Center of Excellence in Women's Health, MCP-Hahnemann, Philadelphia, Pennsylvania