To authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1532-5415.2010.03043.x Byline: Raymond T. C. M. Koopmans (*), Jan C. M. Lavrijsen (*), J. Frank. Hoek ([dagger]), Paul B. M. Went ([double dagger]), Jos M. G. A. Schols (s.) Author Affiliation: (*)Department of Primary and Community Care, Centre for Family Medicine, Geriatric Care and Public Health, Radboud University Nijmegen, Medical Centre, Nijmegen, the Netherlands ([dagger])Department of Nursing Home Medicine, VU University Hospital Amsterdam, Amsterdam, the Netherlands ([double dagger])Department of Public Health and Primary Care, University Medical Centre, Leiden, the Netherlands (s.)Department of General Practice, Maastricht University, Maastricht, the Netherlands