*Sydney Medical School, University of Sydney, Sydney, Australia;
†School of Public Health, University of Sydney, Sydney, Australia;
‡Sports Medicine, Sydney University, Sydney, Australia;
§South Sydney Sports Medicine, Sydney, Australia; and
¶Sydney Roosters, Sydney, Australia.
Corresponding Author: John W. Orchard, MD, PhD, FACSEP, Sports Medicine at Sydney University, Cnr Western Ave & Physics Rd, University of Sydney, NSW 2006, Australia ([email protected]).
S. A. Brennan and A. Ibrahim currently work for (and J. W. Orchard and E. Steet previously worked for) the Sydney Roosters rugby league team as part of paid medical staff. The remaining authors report no conflicts of interest.