[1] Northwest Clin Alkmaar, Dept Geriatr Med, Alkmaar, Netherlands
[2] Northwest Clin Alkmaar, Dept Pharm, Alkmaar, Netherlands
[3] Free Univ Amsterdam, Dept Gen Med & Geriatr Med, Amsterdam, Netherlands
[4] St Antonius Hosp Nieuwegein, Dept Internal Med, Sect Geriatr Med, Utrecht, Netherlands
[5] St Antonius Hosp Nieuwegein, Dept Internal Med, Sect Geriatr Med, Woerden, Netherlands