[1] Amsterdam UMC, Dept Publ & Occupat Hlth, Amsterdam Publ Hlth Res Inst, Amsterdam, Netherlands
[2] Res Ctr Insurance Med, Amsterdam, Netherlands
[3] Amsterdam UMC, Dept Clin Epidemiol Biostat & Bioinformat, Amsterdam Publ Hlth Res Inst, Amsterdam, Netherlands
[4] Univ Basel, Acad Unit EbIM, Dept Clin Res, Evidence Based Insurance Med, Basel, Switzerland
[5] Univ Manchester, Ctr Epidemiol Versus Arthrit, Manchester, Lancs, England
[6] Kings Coll London, Sch Med, London, England
[7] Amsterdam UMC, Med Lib, Amsterdam, Netherlands