[1] Univ Newcastle, Sch Med & Publ Hlth, Univ Dr, Newcastle, NSW 2308, Australia
[2] GP Synergy Reg Training Org RTO, NSW&ACT Res & Evaluat Unit, 20 McIntosh Dr, Mayfield West, NSW 2304, Australia
[3] John Hunter Hosp, Hunter Med Res Inst HMRI, Clin Res Design & Stat Support Unit CReDITSS, New Lambton Hts, NSW 2305, Australia
[4] Univ Melbourne, Nossal Inst, Parkville, Vic 3010, Australia
[5] Univ Melbourne, Melbourne Sustainable Soc Inst, Parkville, Vic 3010, Australia
[6] Univ Queensland, Royal Brisbane & Womens Hosp, Fac Med, Gen Practice Clin Unit, Level 8,Hlth Sci Bldg, Brisbane, Qld 4029, Australia
[7] Gen Practice Training Tasmania Reg Training Org, Level 3,RACT House,179 Murray St, Hobart, Tas 7000, Australia
[8] Univ Tasmania, Tasmanian Sch Med, Level 1,Med Sci 1,17 Liverpool St, Hobart, Tas 7000, Australia
[9] Eastern Victoria Gen Practice Training Reg Traini, 15 Cato St, Hawthorn, Vic 3122, Australia
[10] Univ Melbourne, Dept Gen Practice & Primary Hlth Care, 200 Berkeley St, Carlton, Vic 3053, Australia
[11] Monash Univ, Fac Med Nursing & Hlth Sci, Sch Rural Hlth, Northways Rd, Churchill, Vic 3842, Australia