APA (7th ed.) Citation

KM, G., SW, M., J, B., M, M., Jr, H. H., A, M., . . . RC, C. (2007). Recurrent concussion and risk of depression in retired professional football players. Medicine and science in sports and exercise, 39(6), 903. https://doi.org/10.1249/mss.0b013e3180383da5

Chicago Style (17th ed.) Citation

KM, Guskiewicz, Marshall SW, Bailes J, McCrea M, Harding HP Jr, Matthews A, Mihalik JR, and Cantu RC. "Recurrent Concussion and Risk of Depression in Retired Professional Football Players." Medicine and Science in Sports and Exercise 39, no. 6 (2007): 903. https://doi.org/10.1249/mss.0b013e3180383da5.

MLA (9th ed.) Citation

KM, Guskiewicz, et al. "Recurrent Concussion and Risk of Depression in Retired Professional Football Players." Medicine and Science in Sports and Exercise, vol. 39, no. 6, 2007, p. 903, https://doi.org/10.1249/mss.0b013e3180383da5.