1. Departments of Clinical Pharmacology and Internal Medicine, Hospital Universitari Germans Trias I Pujol-IGTP, Badalona, Spain
2. Department of Pharmacology, Therapeutics and Toxicology and Department of Medicine, Universitat Autònoma de Barcelona, Cerdanyola del Vallés, Spain
3. Drug Addiction Program, Institut de Neuropsiquiatria i Addiccions-INAD, Hospital del Mar Medical Research Institute-IMIM, Barcelona, Spain