[1] Rotterdam Univ Appl Sci, Res Ctr Innovat Care, POB 25035, NL-3001 HA Rotterdam, Netherlands
[2] Vrije Univ Amsterdam, Amsterdam UMC, Dept Publ & Occupat Hlth, Amsterdam Publ Hlth Res Inst, Van der Boechorststr 7, NL-1081 BT Amsterdam, Netherlands
[3] Amsterdam UMC, AMC, Dept Internal Med, Sect Geriatr Med, POB 22660, NL-1100 DD Amsterdam, Netherlands
[4] Erasmus Univ, Med Ctr, Dept Gen Practice, POB 2040, NL-3000 CA Rotterdam, Netherlands
[5] NIVEL Netherlands Inst Hlth Serv Res, POB 1568, NL-3500 BN Utrecht, Netherlands
[6] Univ Groningen, Univ Med Ctr Groningen, Dept Hlth Sci Community & Occupat Med, Groningen, Netherlands