Brief Report

From the Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC (D.V.H., K.S.K.); the Department of Pediatrics, University of Colorado School of Medicine, Denver (N.L., C.A.B.); and Pediatric Endocrine Associates, Greenwood Village, CO (C.A.B.). Address reprint requests to Dr. Korach at the Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, MD B3-02, P.O. Box 12233, Research Triangle Park, NC 27709, or at [email protected].