[1] Univ New South Wales, Fac Med & Hlth, UNSW Acad Gen Practice Network, Sydney, NSW, Australia
[2] Univ Wollongong, Sch Med, Wollongong, NSW, Australia
[3] Prince Wales Hosp, Adv Care Planning Serv, Sydney, NSW, Australia
[4] Univ New South Wales, Prince Wales Clin Sch, Sydney, NSW, Australia
[5] Prince Wales Hosp, Dept Geriatr Med, Sydney, NSW, Australia
[6] Concord Repatriat Gen Hosp, Ctr Educ & Res Ageing CERA, Dept Geriatr Med, Sydney, NSW, Australia
[7] Univ Sydney, Fac Med & Hlth, Concord Clin Sch, Sydney, NSW, Australia
[8] Sutherland Hosp, Southcare Aged & Extended Community Care, Sydney, NSW, Australia
[9] Bond Univ, Fac Hlth Sci & Med, Gold Coast, Qld, Australia
[10] Sydney Local Hlth Dist, Aged Chron Care & Rehabil, Sydney, NSW, Australia
[11] Univ New South Wales, Fac Med & Hlth, Ctr Primary Hlth Care & Equ, Sydney, NSW, Australia
[12] Univ New South Wales, Fac Hlth & Med, Sch Populat Hlth, Level 3,Samuels Bldg,Bot St, Sydney, NSW 2052, Australia