1. Division of Neuroscience, Oregon Regional Primate Research Center, Oregon Health Sciences University (G.A.D., D.F.H., M.E.C., S.R.O.), Beaverton, Oregon 97006-3448;
2. Center for Reproductive Biology, School of Molecular Bioscience, Washington State University (J.A.P., M.K.S.), Pullman, Washington 99164-4231