Lannoo, E., F. Colardyn, T. Vandekerckhove, C. De Deyne, G. de Soete, and C. Jannes. 1998. Subjective complaints versus neuropsychological test performance after moderate to severe head injury. Acta Neurochirurgica (Wien) 140:245–253.
Matser, E. J., A. Kessels, B. Jordan, M. Lezak, and J. Troost. 1998. Chronic traumatic brain injury in professional soccer players. Neurology 51(3):791–796.
Matser, E. J., A. G. Kessels, M. D. Lezak, B. D. Jordan, and J. Troost. 1999. Neuropsychological impairment in amateur soccer players. JAMA 282(10):971–973.
Matser, J. T., A. G. Kessels, M. D. Lezak, and J. Troost. 2001. A dose-response relation of headers and concussions with cognitive impairment in professional soccer players. Journal of Clinical and Experimental Neuropsychology 23(6):770–774.
Moser, R. S., P. Schatz, and B. D. Jordan. 2005. Prolonged effects of concussion in high school athletes. Neurosurgery 57(2):300–306.
Murelius, O., and Y. Haglund. 1991. Does Swedish amateur boxing lead to chronic brain damage? 4. A retrospective neuropsychological study. Acta Neurologica Scandinavica 83(1):9–13.
Novack, T. A., A. L. Alderson, B. A. Bush, J. M. Meythaler, and K. Canupp. 2000. Cognitive and functional recovery at 6 and 12 months post-TBI. Brain Injury 14(11):987–996.
Porter, M. D. 2003. A 9-year controlled prospective neuropsychologic assessment of amateur boxing. Clinical Journal of Sport Medicine 13(6):339–352.
Porter, M. D., and P. A. Fricker. 1996. Controlled prospective neuropsychological assessment of active experienced amateur boxers. Clinical Journal of Sport Medicine 6(2):90–96.
Ratiu, P., I. F. Talos, S. Haker, D. Lieberman, and P. Everett. 2004. The tale of Phineas Gage, digitally remastered. Journal of Neurotrauma 21(5):637–643.
Raymont, V., A. Greathouse, K. Reding, R. Lipsky, A. Salazar, and J. Grafman. 2008. Demographic, structural and genetic predictors of late cognitive decline after penetrating head injury. Brain 131:543–558.
Ruff, R. M., R. Evans, and L. F. Marshall. 1986. Impaired verbal and figural fluency after head injury. Archives of Clinical Neuropsychology 1(2):87–101.
Salazar, A. M., J. Grafman, S. Schlesselman, S. C. Vance, J. P. Mohr, M. Carpenter, P. Pevsner, C. Ludlow, and H. Weingartner. 1986. Penetrating war injuries of the basal forebrain: Neurology and cognition. Neurology 36(4):459–465.
Silver, J. M., T. W. McAllister, and S. C. Yudofsky, eds. 2005. Textbook of Traumatic Brain Injury. Arlington, VA: American Psychiatric Publishing.
Straume-Naesheim, T. M., T. E. Andersen, J. Dvorak, and R. Bahr. 2005. Effects of heading exposure and previous concussions on neuropsychological performance among Norwegian elite footballers. British Journal of Sports Medicine 39(Suppl 1):i70–i77.
Tate, R. L., B. Fenelon, M. L. Manning, and M. Hunter. 1991. Patterns of neuropsychological impairment after severe blunt head injury. Journal of Nervous and Mental Disease 179(3):117–126.
Teuber, H. L., and S. Weinstein. 1954. Performance on a formboard-task after penetrating brain injury. Journal of Psychology 38:177–190.