24 “if in doubt, sit them out” 7. REFERENCES 1. Finch CF, Clapperton AJ, McCrory P. Increasing incidence of hospitalisation for sport-related concussion in Victoria, Australia. Med J Aust. 2013; 198(8):427-430. 2. Clay MB, Glover KL, Lowe DT. Epidemiology of concussion in sport: a literature review. J Chiropr Med. 2013; 12(4):230-251. 3. McCrory P, Meeuwisse W, Dvorak J, et al. Consensus statement on concussion in sport—the 5th international conference on concussion in sport held in Berlin, October 2016. Br J Sports Med. 2017; Published Online First: 26 April 2017. doi: 10.1136/ bjsports-2017-097699. 4. McCrory P, Feddermann-Demont N, Dvorák J, et al. What is the definition of sports-related concussion: a systematic review. Br J Sports Med. 2017; 51(11):877- 887. 5. Schneider KJ, Leddy JJ, Guskiewicz KM, et al. Rest and treatment/rehabilitation following sport-related concussion: a systematic review. Br J Sports Med. 2017. 6. Giza CC, Hovda DA. The new neurometabolic cascade of concussion. Neurosurgery. 2014; 75 Suppl 4:S24-33. 7. Martin G. Traumatic brain injury: The first 15 milliseconds. Brain Inj. 2016; 30(13-14):1517-1524. 8. Maddocks DL, Dicker GD, Saling MM. The assessment of orientation following concussion in athletes. Clin J Sport Med. 1995; 5(1):32-35. 9. Echemendia RJ, Meeuwisse W, McCrory P, et al. The Sport Concussion Assessment Tool 5th Edition (SCAT5). Br J Sports Med. 2017. 10. Sport concussion assessment tool - 5th edition. Br J Sports Med. 2017; 51(11):851-858. 11. Echemendia RJ, Meeuwisse W, McCrory P, et al. The Concussion Recognition Tool 5th Edition (CRT5). Br J Sports Med. 2017. 12. Concussion recognition tool 5(c). Br J Sports Med. 2017. 13. Patricios J, Fuller GW, Ellenbogen R, et al. What are the critical elements of sideline screening that can be used to establish the diagnosis of concussion? A systematic review. Br J Sports Med. 2017; 51(11):888-894. 14. Echemendia RJ, Broglio SP, Davis GA, et al. What tests and measures should be added to the SCAT3 and related tests to improve their reliability, sensitivity and/or specificity in sideline concussion diagnosis? A systematic review. Br J Sports Med. 2017; 51(11):895- 901. 15. McCrea M, Meier T, Huber D, et al. Role of advanced neuroimaging, fluid biomarkers and genetic testing in the assessment of sport-related concussion: a systematic review. Br J Sports Med. 2017; 51(12):919- 929. 16. Iverson GL, Gardner AJ, Terry DP, et al. Predictors of clinical recovery from concussion: a systematic review. Br J Sports Med. 2017; 51(12):941-948. 17. Manzanero S, Elkington LJ, Praet SF, Lovell G, Waddington G, Hughes DC. Post-concussion recovery in children and adolescents: A narrative review. J Concussion. 2017; 1:2059700217726874. 18. McLeod TC, Lewis JH, Whelihan K, Bacon CE. Rest and Return to Activity After Sport-Related Concussion: A Systematic Review of the Literature. J Athl Train. 2017; 52(3):262-287. 19. Davis GA, Anderson V, Babl FE, et al. What is the difference in concussion management in children as compared with adults? A systematic review. Br J Sports Med. 2017; 51(12):949-957. 20. Field M, Collins MW, Lovell MR, Maroon J. Does age play a role in recovery from sports-related concussion? A comparison of high school and collegiate athletes. J Pediatr. 2003; 142(5):546-553. 21. Crowe L, Collie A, Hearps S, et al. Cognitive and physical symptoms of concussive injury in children: a detailed longitudinal recovery study. Br J Sports Med. 2016; 50(5):311-316. 22. Manley G, Gardner AJ, Schneider KJ, et al. A systematic review of potential long-term effects of sport-related concussion. Br J Sports Med. 2017; 51(12):969-977. 23. Mez J, Daneshvar DH, Kiernan PT, et al. Clinicopathological evaluation of chronic traumatic encephalopathy in players of american football. JAMA. 2017; 318(4):360-370. 24. Belanger HG, Vanderploeg RD, McAllister T. Subconcussive Blows to the Head: A Formative Review of Short-term Clinical Outcomes. J Head Trauma Rehabil. 2016; 31(3):159-166. 25. Guskiewicz KM, Marshall SW, Bailes J, et al. Association between recurrent concussion and late-life cognitive impairment in retired professional football players. Neurosurgery. 2005; 57(4):719-726; discussion 719-726. 26. Gardner AJ, Kay-Lambkin F, Shultz SR, Iverson GL. Level of knowledge and attitude towards sport-related concussion among the general?public. Br J Sports Med. 2017; 51(11):A68-A68. 27. Pearce AJ, Young JA, Parrington L, Aimers N. Do as I say: contradicting beliefs and attitudes towards sports concussion in Australia. J Sports Sci. 2017; 35(19):1911- 1919. 28. White PE, Register-Mihalik J, Donaldson A, Sullivan SJ, Finch CF. Concussion guideline implementation perceptions and experiences among parents of community-level Australian Football junior players. BMJ Open Sport Exerc Med. 2017; 3(1). 29. Emery CA, Black AM, Kolstad A, et al. What strategies can be used to effectively reduce the risk of concussion in sport? A systematic review. Br J Sports Med. 2017; 51(12):978-984. 30. Taylor ME, Sanner JE. The Relationship Between Concussion Knowledge and the High School Athlete’s Intention to Report Traumatic Brain Injury Symptoms. J Sch Nurs. 2017; 33(1):73-81. 31. Clacy A, Goode N, Sharman R, Lovell GP, Salmon P. A systems approach to understanding the identification and treatment of sport-related concussion in community rugby union. Appl Ergon. 2017. 32. White PE, Donaldson A, Sullivan SJ, Newton J, Finch CF. Australian Football League concussion guidelines: what do community players think? BMJ Open Sport Exerc Med. 2016; 2(1).