1. Center for Health and the Environment (J.C., N.A.G., B.L.L.), University of California, Davis, California 95616
2. Department of Entomology (K.C.A., S.J.G., B.D.H.), University of California, Davis, California 95616
3. California National Primate Research Center (N.A.G., B.L.L.), University of California, Davis, California 95616
4. Department of Obstetrics and Gynecology (M.I.A., A.J.D.), Yale University School of Medicine, New Haven, Connecticut 06510
5. Division of Reproductive Endocrinology and Infertility, University of California, Davis, Medical Center (A.J.D.), University of California, Davis, California 95616
6. Department of Nutrition (L.Z.), University of California, Davis, California 95616
7. Cancer Research Center (B.D.H.), University of California, Davis, California 95616