1. Academic Centre for General Practice; Department of Public Health and Primary Care; Katholieke Universiteit Leuven; Leuven Belgium
2. EBM Practice Net; Leuven Belgium
3. Belgian Centre for Evidence Based Medicine (CEBAM); Leuven Belgium
4. Duodecim; Helsinki Finland
5. Department of Primary and Interdisciplinary Care Antwerp; University of Antwerp; Antwerp Belgium