[1] Univ Sydney, Sch Pharm, Fac Med & Hlth, Sydney, NSW, Australia
[2] Prince Wales Hosp, Dept Pharm, Randwick, NSW, Australia
[3] Prince Wales Hosp, Dept Pain Management, Randwick, NSW, Australia
[4] Univ South Australia, Qual Use Med & Pharm Res Ctr, Clin & Hlth Sci, Adelaide, SA, Australia
[5] Univ New South Wales, Sydney, NSW, Australia
[6] Univ Notre Dame, Sydney, NSW, Australia