[1] Monash Univ, Monash Addict Res Ctr, Eastern Hlth Clin Sch, Melbourne, Vic, Australia
[2] Monash Univ, Fac Pharm & Pharmaceut Sci, Ctr Med Use & Safety, Melbourne, Vic, Australia
[3] Monash Hlth, Pharm Dept, Melbourne, Vic, Australia
[4] Monash Univ, Dept Forens Med, Melbourne, Vic, Australia
[5] Monash Univ, Dept Gen Practice, Melbourne, Vic, Australia
[6] La Trobe Univ, Dept Pharm & Biomed Sci, Bendigo, Australia
[7] Deakin Univ, Inst Hlth Transformat, Sch Nursing & Midwifery, Ctr Qual & Patient Safety Res, Melbourne, Vic, Australia
[8] Univ Melbourne, Sch Hlth Sci, Dept Nursing, Melbourne, Vic, Australia
[9] Royal Melbourne Hosp, Dept Med, Melbourne, Vic, Australia
[10] Alfred Hlth, Caulfield Pain Management & Res Ctr, Melbourne, Vic, Australia
[11] Monash Univ, Cent Clin Sch, Dept Anaesthesiol & Perioperat Med, Melbourne, Vic, Australia
[12] Painaustralia, Canberra, ACT, Australia
[13] Victorian Inst Forens Med, Drug Intelligence Unit, Melbourne, Vic, Australia
[14] Monash Univ, Sch Publ Hlth & Prevent Med, Dept Epidemiol & Prevent Med, Melbourne, Vic, Australia