1. Department of Obstetrics and Gynecology (K.W., J.P., T.E.C., B.M., M.J.), Chandler Medical Center, University of Kentucky, Lexington, Kentucky 40536–0298;
2. Women's Health Department (J.G.), Merck Sharp and Dohme Research Laboratories, 5340-BH Oss, The Netherlands;
3. Laboratory for Transcriptional Regulation (I.T.), Research Center for Allergy and Immunology, Yokohama, Kanagawa 230–0045, Japan