K. John McConnell is research assistant professor, Center for Policy and Research in Emergency Medicine, Oregon Health & Science University, Portland; Laura Packel is epidemiologist, and Joan M. Chow is Epidemiology Unit chief, California Department of Health Services, Sexually Transmitted Disease Control Branch, Berkeley, CA; M. Antonia Biggs is project director, and Claire Brindis is director, Center for Reproductive Health Research & Policy, Institute for Health Policy Studies, University of California at San Francisco.