1. Belgian Red Cross; Centre for Evidence-Based Practice (CEBaP); Motstraat 42 Mechelen Belgium 2800
2. Allegheny Health Network; Emergency Department; 232 West 25th St Erie Pennsylvania USA 16544
3. Thames Valley Air Ambulance; Stokenchurch House, Oxford Road Stokenchurch UK HP14 3SX
4. University of Virginia School of Medicine; Department of Emergency Medicine; Lee Street Charlottesville Virginia USA 22908
5. Karolinska University Hospital; Function of Emergency Medicine; Stockholm Stockholm Sweden 17100