[1] UCL, Div Psychiat, NIHR Mental Hlth Policy Res Unit, London, England
[2] UCL, Div Psychiat, PsyLife Res Grp, London, England
[3] Univ Granada, Dept Psychiat, Granada, Spain
[4] UCL, Div Psychiat, NIHR Mental Hlth Policy Res Unit Coprod Grp, London, England
[5] Brighton & Sussex Med Sch, Dept Primary Care & Publ Hlth, Brighton, England
[6] Royal Coll Psychiatrists, Natl Clin Audit Psychosis NCAP, London, England
[7] Manchester Metropolitan Univ, Manchester, England
[8] Pennine Care NHS Fdn Trust, Ashton Under Lyne, England
[9] Imperial Coll London, Div Psychiat, London, England
[10] Univ Worcester, Sch Allied Hlth & Community, Worcester, England
[11] Camden & Islington NHS Fdn Trust, London, England