American Medical Society for Sports Medicine Position Statement on Concussion in Sport.
Harmon KG, Clugston JR, Dec K, Hainline B, Herring SA, Kane S, Kontos AP, Leddy JJ, McCrea MA, Poddar SK, Putukian M, Wilson JC, Roberts WO. American Medical Society for Sports Medicine Position Statement on Concussion in Sport. Clin J Sport Med. 2019 03; 29(2):87-100.