[1] Radboud Univ Nijmegen, Med Ctr, Dept Primary & Community Care, NL-6500 HB Nijmegen, Netherlands
[2] Radboud Univ Nijmegen, Med Ctr, Acad Educ Inst, NL-6500 HB Nijmegen, Netherlands
[3] Radboud Univ Nijmegen, Med Ctr, Dept Geriatr, NL-6500 HB Nijmegen, Netherlands
[4] Haga Teaching Hosp, Dept Internal Med, The Hague, Netherlands
[5] Elderly Care Org De Zorggroep, Elderly Care, Venlo, Netherlands