1. Department of Obstetrics and Gynecology (W.E.T., A.B.), Morehouse School of Medicine, Atlanta, Georgia 30310
2. Department of Anatomy and Neurobiology (J.A.W., K.T.), Morehouse School of Medicine, Atlanta, Georgia 30310
3. Department of Biochemistry (D.L.), Morehouse School of Medicine, Atlanta, Georgia 30310
4. Department of Obstetrics and Gynecology (M.Z.), Boston University School of Medicine, Boston, Massachusetts 02118
5. Department of Biochemistry (K.E.M.), Molecular Biology and Cell Biology, Northwestern University, Evanston, Illinois 60208