1. PHARMO Institute; Research; P.O. Box 85222 Utrecht Netherlands 3508AE
2. Erasmus Medical Center; Department of General Practice; PO Box 2040 Room Ff304 Rotterdam Netherlands 3000 CA
3. Faculty of Medicine & Health Sciences (FMHS); Department of Community Medicine; UAE University PO Box 17666 Al Ain United Arab Emirates
4. Erasmus University Medical Center; Department of Orthopaedics; PO Box 2040 Rotterdam Netherlands 3000 CA