1. Department of Sports Medicine; Norwegian School of Sport Sciences; PO Box 4014, Ullevål Stadion, 0806 Oslo Norway
2. Cabrini Health; La Trobe University; Melbourne Australia
3. University of New South Wales; Sydney NSW Australia
4. Technion University; Haifa Israel
5. Federal University; São Paolo Brazil
6. Maastricht University Medical Centre; Maastricht Netherlands
7. University of Montreal; Montreal QC Canada
8. Centro Hospitalar Porto; Oporto Portugal
9. Glasgow Caledonian University; Glasgow UK
10. Naarden; Netherlands
11. Moline; IL USA
12. Mayo Clinic; Minnesota USA
13. Hospital Universitario Quirón; Madrid Spain
14. University of Exeter; Exeter UK