1. Divisions of Medical Pharmacology (A.M.K., O.C.M., E.R.d.K.), Leiden/Amsterdam Center for Drug Research, Leiden University, Leiden, 2300 RA, The Netherlands
2. Pharmacology (I.C.J.v.d.S., E.C.M.d.L., A.G.d.B.), Leiden/Amsterdam Center for Drug Research, Leiden University, Leiden, 2300 RA, The Netherlands
3. Institute for Neurobiology (P.J.L.), University of Amsterdam, 1090 GB, Amsterdam, The Netherlands