Affiliation: | 1. Departments of Medical Psychology, Oregon Health Sciences University, Research Service (151P), VA Medical Center, Portland, Oregon 97201, U.S.A.;2. Departments of Pharmacology, Oregon Health Sciences University, Research Service (151P), VA Medical Center, Portland, Oregon 97201, U.S.A.;3. Dutch Science Council, Postbus 18524, ''S-Gravenhage, The Netherlands |