1. University of Manchester; c/o Cochrane Bone, Joint and Muscle Trauma Group; School of Translational Medicine 2nd Floor Stopford Building, Oxford Road Manchester UK M13 9PT
2. London School of Hygiene & Tropical Medicine; Cochrane Injuries Group; North Courtyard Keppel Street London UK WC1E 7HT
3. University of Hull; Hull York Medical School; Cottingham Road Hull UK HU6 7RX