1. Addiction Program, Institut de Neuropsiquiatria i Addiccions, IMIM (Hospital del Mar Medical Research Institute), and Department of Psychiatry, Universitat Autònoma de Barcelona, Passeig Maritim 25, 08003 Barcelona, Spain
2. Addiction Program, Institut de Neuropsiquiatria i Addiccions (INAD-IMIM-PSMAR) and Department of Psychiatry, Universitat Autònoma de Barcelona, Passeig Maritim 25, 08003 Barcelona, Spain
3. Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol-IGTP and Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Carretera de Canyet s/n. 08916 Badalona, Spain