1. Anatomisches Institut, Technische Universität München (S.F., A.M.), D-80802 München, Germany
2. Pharmakologisches Institut, Universität Mainz (I.W.), D-55101 Mainz, Germany
3. Institute for Mammalian Genetics, Genome Analysis Center, GSF-National Research Center for Environment and Health (R.B.), D-85764 Neuherberg, Germany
4. Frauenklinik, Diakonissenkrankenhaus (W.R.), 76199 Karlsruhe-Rüppurr, Germany
5. Division of Neuroscience, Oregon Regional Primate Research Center-Oregon Health Sciences University (S.R.Oj., G.A.D.), Beaverton, Oregon 97006
6. Department of Molecular Cell Biology, Weizmann Institute of Science (A.A.), Rehovot 76100, Israel