1. Academic Medical Center; Department of Clinical Epidemiology, Biostatistics and Bioinformatics; Room J1B-207.1 Meibergdreef 9 Amsterdam Netherlands 1105 AZ
2. University Medical Center Utrecht; Julius Center for Health Sciences and Primary Care; PO Box 85500 Utrecht Netherlands 3508 GA Utrecht
3. Academic Medical Center; Department of Cardiology; P.O. Box 22700 Amsterdam Netherlands 1100 DE
4. Academic Medical Center; Dutch Cochrane Centre; Room J1B - 211 P.O. Box 22700 Amsterdam Netherlands 1100 DE
5. Academic Medical Center; Department of Internal Medicine; P.O. Box 22700 Amsterdam Netherlands 1100 DE
6. Academic Medical Center; Department of General Practice / Family Medicine; Meibergdreef 9 Amsterdam Netherlands 1105 AZ