1. Belgian Red Cross; Centre for Evidence-Based Practice; Motstraat 42 Mechelen Belgium 2800
2. Belgian Centre for Evidence-Based Medicine - Cochrane Belgium; Kapucijnenvoer 33, blok J Leuven Belgium 3000
3. Belgian Red Cross; Motstraat 40 Mechelen Belgium 2800
4. KU Leuven; Department of Public Health and Primary Care, Faculty of Medicine; Kapucijnenvoer 35 blok d Leuven Belgium 3000
5. Ghent University Hospital; Department of Emergency Medicine; Ghent Belgium