1. Department of Medicinal Chemistry,
BMC, Uppsala University, P.O. Box 574,
SE-751 23 Uppsala, Sweden
2. Department of Biological
Research
on Drug Dependence, BMC, Uppsala University, P.O. Box 591, SE-751 23 Uppsala, Sweden
3. Service of Endocrinology and
Department of Physiology and Biophysics, Faculty of Medicine, University of Sherbrooke, Sherbrooke J1H 5N4, Quebec,
Canada