[1] UNSW Sydney, Ctr Social Res Hlth, Sydney, NSW, Australia
[2] UNSW Sydney, Kirby Inst, Sydney, NSW, Australia
[3] Univ Sydney, Fac Med & Hlth, Sch Publ Hlth, Camperdown, Australia
[4] Hunter New England Local Hlth Dist, Drug & Alcohol Clin Serv, Newcastle, NSW, Australia
[5] Univ Newcastle, Fac Hlth & Med, Newcastle, NSW, Australia
[6] NSW Hlth, Populat Hlth Strategy & Performance, St Leonards, NSW, Australia
[7] NSW Users & AIDS Assoc, Glebe, NSW, Australia
[8] Macquarie Univ, Dept Hlth Syst & Populat, Sydney, NSW, Australia
[9] Kirketon Rd Ctr, Sydney, NSW, Australia
[10] Univ Sydney, Camperdown, Australia
[11] UNSW Sydney, Natl Drug & Alcohol Res Ctr, Sydney, NSW, Australia
[12] NSW Hlth, Ctr Populat Hlth, St Leonards, NSW, Australia
[13] Metro North Hosp & Hlth Serv, Alcohol & Drug Serv, Metro North Mental Hlth, Brisbane, Qld, Australia
[14] Illawarra Shoalhaven Local Hlth Dist, Drug & Alcohol Serv, Wollongong, NSW, Australia
[15] North Sydney Local Hlth Dist, Sydney, NSW, Australia
[16] Mid North Coast Local Hlth Dist, Port Macquarie, NSW, Australia
[17] Next Step Drug & Alcohol Serv, Perth, WA, Australia
[18] Curtin Univ, Natl Drug Res Inst, Perth, WA, Australia
[19] Drug & Alcohol Serv South Australia, Adelaide, SA, Australia