[1] McMaster Univ, Michael G DeGroote Cochrane Canada Ctr, 1280 Main St West, Hamilton, ON, Canada
[2] McMaster Univ, McMaster GRADE Ctr, Dept Hlth Res Methods Evidence & Impact, 1280 Main St West, Hamilton, ON, Canada
[3] Ist Super Sanita, Res Coordinat & Support Serv, Viale Regina Elena 299, I-00161 Rome, Italy
[4] Univ Verona, Sect Psychiat, Dept Neurosci Biomed & Movement Sci, WHO Collaborating Ctr Res & Training Mental Hlth, Verona, Italy
[5] Vrije Univ, Dept Clin Neuro & Dev Psychol, Amsterdam, Netherlands
[6] Vrije Univ, Fac Behav & Movement Sci, Amsterdam, Netherlands
[7] Ist Super Sanita, Ctr Eccellenza Clin Qualita & Sicurezza Cure, Viale Regina Elena 299, I-00161 Rome, Italy
[8] Lazio Reg Hlth Serv, Dept Epidemiol, Via Cristoforo Colombo 112, I-00154 Rome, Italy
[9] Univ Oxford, Dept Psychiat, Oxford, England
[10] Univ Roma Tor Vergata, Sch Hyg & Prevent Med, Rome, Italy
[11] Mario Negri Inst Pharmacol Res IRCCS, Via Giuseppe La Masa 19, I-20156 Milan, Italy
[12] McMaster Univ, Dept Med, Hamilton, ON, Canada