Ruhe, A, Gänsslen, A & Klein, W. (2014). The incidence of concussion in professional and collegiate ice hockey: Are we making progress? A systematic review of the literature. British Journal of Sports Medicine, 48 (2), 102-106. doi: 10.1136/bjsports-2012-091609
APA (7th ed.) CitationRuhe, A., Gänsslen, A., & Klein, W. (2014). The incidence of concussion in professional and collegiate ice hockey: Are we making progress? A systematic review of the literature. British Journal of Sports Medicine, 48(2), 102-106.
Chicago Style (17th ed.) CitationRuhe, A., A. Gänsslen, and W. Klein. "The Incidence of Concussion in Professional and Collegiate Ice Hockey: Are We Making Progress? A Systematic Review of the Literature." British Journal of Sports Medicine 48, no. 2 (2014): 102-106.
MLA (9th ed.) CitationRuhe, A., et al. "The Incidence of Concussion in Professional and Collegiate Ice Hockey: Are We Making Progress? A Systematic Review of the Literature." British Journal of Sports Medicine, vol. 48, no. 2, 2014, pp. 102-106.