1. Departments of Clinical Pharmacology and Internal Medicine, Hospital Universitari Germans Trias I Pujol-IGTP, Badalona, Spain
2. Departament of Pharmacology, Medicine and Psychiatry, Universitat Autònoma De Barcelona, Badalona, Spain
3. Drug Addiction Program, Institut De Neuropsiquiatria I Addiccions-INAD, Hospital Del Mar Medical Research Institute-IMIM, Barcelona, Spain