1. Division of Neuroscience (G.A.D., C.G.-R., V.T., S.R.O.), Oregon National Primate Research Center/Oregon Health & Science University, Beaverton, Oregon 97006-3448
2. Center for Developmental Biology (L.F.P.), University of Texas Southwestern Medical Center, at Dallas, Dallas, Texas 75390-9133
3. Division of Reproductive Biology (S.-Y.T.H.), Department of OB/GYN, Stanford University School of Medicine, Stanford, California 94305