@article{guskiewicz2005-16239884,
  author  = {Guskiewicz, K. M. and Marshall, S. W. and Bailes, J. and McCrea, M. and Cantu, R. C. and Randolph, C. and Jordan, B. D.},
  title   = {{Association between recurrent concussion and late-life cognitive impairment in retired professional football players}},
  journal = {Neurosurgery},
  year    = {2005},
  doi     = {10.1093/neurosurgery/57.4.719},
  pmid    = {16239884},
  url     = {https://doi.org/10.1093/neurosurgery/57.4.719}
}