[1] Univ Tours, Nantes Univ, CHU Nantes, CHU Tours,INSERM,Methods Patients Ctr Outcomes &, F-44000 Nantes, France
[2] Nantes Univ, CHU Nantes, UIC Psychiat & Sante Mentale, F-44000 Nantes, France
[3] Lund Univ, Fac Med, Dept Clin Sci Lund, Psychiat, Lund, Sweden
[4] Malmo Addict Ctr, Malmo, Sweden
[5] Nantes Univ, CHU Nantes, Dept Clin Res & Innovat, Biostat & Methodol Unit, F-44000 Nantes, France