1. Departments of Cellular Animal Physiology (B.M.R.K., P.M.J.M.C., D.T.W.M.O., E.W.R., B.G.J.), Nijmegen Institute for Neurosciences and Institute of Cellular Signalling, University of Nijmegen, Nijmegen 6525 ED, The Netherlands
2. Molecular Animal Physiology (M.W.C., G.J.M.M.), Nijmegen Institute for Neurosciences and Institute of Cellular Signalling, University of Nijmegen, Nijmegen 6525 ED, The Netherlands