[1] Univ Sydney, Fac Med & Hlth, Susan Wakil Sch Nursing, 88 Mallett St, Camperdown, NSW 2050, Australia
[2] St Vincents Private Hosp Sydney, Ctr Family Based Mental Hlth Care, Darlinghurst, NSW, Australia
[3] St Vincents Hosp Sydney, Darlinghurst, NSW, Australia
[4] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark
[5] Psychiat Res Unit, Slagelse, Denmark
[6] St Vincents Hosp Sydney, Clin Res Unit Anxiety & Depress, Darlinghurst, NSW, Australia
[7] Mental Hlth Serv Capital Reg Denmark, Copenhagen, Denmark
[8] Danish Res Inst Suicide Prevent, Copenhagen, Denmark
[9] Psychiat Ctr North Zealand, Psychiat Res Unit, Hillerod, Denmark
[10] Univ Copenhagen, Copenhagen Univ Hosp, Mental Hlth Ctr Copenhagen, Copenhagen, Denmark
[11] Univ Sydney, Brain & Mind Ctr, Camperdown, NSW, Australia
[12] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Mental Hlth, Baltimore, MD USA
[13] Australian Natl Univ, Ctr Mental Hlth Res, Canberra, ACT, Australia