[1] Radboud Univ Nijmegen, Med Ctr, Radboud Inst Hlth Sci, Sci Inst Qual Healthcare IQ Healthcare, POB 9101, NL-6500 HB Nijmegen, Netherlands
[2] Dutch Council Hlth & Soc, RVS, The Hague, Netherlands
[3] Dartmouth Inst Hlth Policy & Clin Practice, Level 5 Williamson Translat Res Bldg, Lebanon, NH 03756 USA
[4] Cardiff Univ, Cochrane Inst Primary Care & Publ Hlth, Cardiff, S Glam, Wales
[5] Radboud Univ Nijmegen, Med Ctr, Radboudumc Alzheimer Ctr, Donders Inst Brain Cognit & Behav, POB 9101, NL-6500 HB Nijmegen, Netherlands
[6] Radboud Univ Nijmegen, Med Ctr, Dept Geriatr, POB 9101, NL-6500 HB Nijmegen, Netherlands