with infertility and endometriosis and related disorders. Clinically, her focus is on patients needing assisted reproduction, as well as ovulatory dysfunction and endometriosis.

Ezra C. Davidson, Jr., M.D., is associate dean of primary care and professor in the Department of Obstetrics and Gynecology at the Charles R. Drew University of Medicine and Science. He currently is also a professor in obstetrics and gynecology at the David Geffen School of Medicine of the University of California, Los Angeles. He was chief of service in the Department of Obstetrics and Gynecology at the King/Drew Medical Center in Los Angeles from 1991 to 1996. Dr. Davidson is currently president of the Association of Academic Minority Physicians and a member of the Board of Governors of the Jacobs Institute of Women’s Health. Dr. Davidson has a major interest in maternal and child health and has had many roles in public policy related to women’s reproductive health and infant health. He is currently a member of the American College of Obstetricians and Gynecologists’ National Fetal and Infant Mortality Review Program and of the California State Department of Health Services’ Black Infant Health Leadership Committee. He chaired the federal health and human services secretary’s Advisory Committee on Infant Mortality from 1991 to 1995 and served as president of the American College of Obstetricians and Gynecologists from 1990 to 1991. He received his B.S. in zoology from Morehouse College and his M.D. from Meharry Medical College. He is a member of the Institute of Medicine and has been involved in a number of study committees on issues of national health policy. He cochaired the Committee on Perinatal Transmission of HIV and served as a member of the IOM Committee on the Impact of Pregnancy Weight on Maternal and Child Health.

Naihua Duan, Ph.D., is professor in residence in the departments of Psychiatry and Biobehavioral Science and Biostatistics and the Jane and Terry Semel Institute for Neuroscience and Human Behavior at the University of California, Los Angeles (UCLA). He is also director of methods core at the UCLA/RAND Center for Research on Quality in Managed Care. He has been involved in health services research for more than 20 years, working on innovative design paradigms for clinical and public health research. Dr. Duan was corporate chair and senior RAND fellow in statistics from 1979 to 2000. He currently serves as member of the Editorial Board for Health Services and Outcomes Research Methodology, the Scientific Advisory Board of the Prevention

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