[1] Leyden Acad Vital & Ageing, Leiden, Netherlands
[2] Leiden Univ, Leiden, Netherlands
[3] Leiden Univ, Med Ctr, Dept Gerontol & Geriatr, Leiden, Netherlands
[4] Univ Sydney, Fac Med, Sydney, NSW 2006, Australia
[5] Hornsby Ku Ring Gai Hosp, Div Rehabil & Aged Care, Sydney, NSW 2077, Australia
[6] Univ Melbourne, Sch Social & Polit Sci, Melbourne, Vic, Australia