Affiliation: | (1) Division of Pharmacology and Toxicology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland;(2) Neuroscience Center, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland;(3) Institute of Behavioral Genetics, University of Colorado at Boulder, UCB 447, Boulder, CO 80309-0447, USA |