1. Receptor Biology Section (K.A.B., K.F.R., S.C.H., K.S.K.), North Carolina 27709
2. Laboratory of Reproductive and Developmental Toxicology, and Comparative and Molecular Pathology Branch (K.S.J.), North Carolina 27709
3. National Institute of Environmental Health Sciences, National Institutes of Health, and Integrated Laboratory Systems, Inc. (K.S.J.), Research Triangle Park, North Carolina 27709
4. Department of Obstetrics and Gynecology (S.L.Y.), Division of Reproductive Endocrinology and Infertility, University of North Carolina, Chapel Hill, North Carolina 27599