1. Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Francisco, California, USA
2. Department of Medicine, University of California, San Francisco, California, USA
3. Department of Community Health Sciences, University of California, Los Angeles, California, USA
4. Utrecht Center for Research and Development of Health Professions Education, University Medical Center Utrecht, Utrecht, The Netherlands
5. Division of General Internal Medicine, University of California, San Francisco, California, USA