1 SEARCH Research Group, Department of Sports Sciences and Clinical Biomechanics, University of Southern Denmark, 55 DK 5230 Odense, Denmark hlund@health.sdu.dk.
2 Centre for Evidence-Based Practice, Bergen University College, Bergen, Norway.
3 Evidence Centre, BMJ, London, UK.
4 SEARCH Research Group, Department of Sports Sciences and Clinical Biomechanics, University of Southern Denmark, 55 DK 5230 Odense, Denmark.
5 Department of Rehabilitation, Copenhagen University Hospital, Herlev and Gentofte, Denmark.
6 Johns Hopkins University, Baltimore, MD, USA.
7 SYRCLE, Central Animal Laboratory, Radboud University Medical Center, Nijmegen, the Netherlands.
8 University Library of Southern Denmark, University of Southern Denmark, Odense, Denmark.
9 Department for Evidence Synthesis, Norwegian Knowledge Center for the Health Services, Oslo, Norway.
10 Musculoskeletal Statistics Unit, Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark.