TY  - RPRT
TI  - Duration of cognitive dysfunction after concussion, and cognitive dysfunction as a risk factor: a population study of young men.
AU  - T W Teasdale
AU  - A Engberg
PY  - 1997
DO  - 10.1136/bmj.315.7108.569
UR  - https://pubmed.ncbi.nlm.nih.gov/9302952/
ID  - 9302952
ER  -