[1] Univ Melbourne, Ctr Youth Mental Hlth, Parkville, Vic, Australia
[2] Orygen, Parkville, Vic, Australia
[3] Univ Med Ctr Hamburg Eppendorf, Ctr Psychosocial Med, Dept Psychiat & Psychotherapy, Psychosis Early Detect & Intervent Ctr PEDIC, Hamburg, Germany
[4] Deakin Univ, Sch Med, IMPACT Strateg Res Ctr, Geelong, Vic, Australia
[5] Univ Hosp Hamburg Eppendorf, Univ Hosp Child & Adolescent Psychiat, Hamburg, Germany
[6] Univ Bern, Univ Hosp Child & Adolescent Psychiat, Bern, Switzerland
[7] Univ Lausanne, Dept Psychiat CHUV, Treatment & Early Intervent Psychosis Program TIP, Prilly, Switzerland