[1] Natl Ctr Clin Res Emerging Drugs, Sydney, Australia
[2] St Vincents Hosp Alcohol & Drug Serv, Sydney, Australia
[3] UNSW Sydney, Natl Drug & Alcohol Res Ctr, Sydney, Australia
[4] Mental Hlth Commiss, Alcohol & Drug Support Serv, Perth, Australia
[5] Eastern Hlth, Tel & Online Serv, Turning Point, Melbourne, Australia
[6] Drug & Alcohol Serv SA, Alcohol & Drug Informat Serv, Adelaide, Australia
[7] Queensland Hlth, Adis 24 7 Alcohol & Drug Support, Brisbane, Australia
[8] UNSW, Natl Ctr Clin Res Emerging Drugs, NDARC, 21-23 King St, Randwick, NSW 2052, Australia