[1] Univ Lausanne, Fac Biol & Med, Lausanne, Switzerland
[2] Univ Ctr Gen Med & Publ Hlth, Dept Vulnerabil & Social Med, Lausanne, Switzerland
[3] Curtin Univ, Fac Hlth Sci, Perth, WA, Australia
[4] Univ Hosp, Dept Addict Med, Lausanne, Switzerland
[5] Univ Hosp, Emergency Dept, Lausanne, Switzerland