Delayed presentation after head injury: is a computed tomography scan necessary?

@article{Hemphill1999DelayedPA,
  title={Delayed presentation after head injury: is a computed tomography scan necessary?},
  author={Robin Hemphill and Sally A Santen and Peter Kleinschmidt},
  journal={Academic emergency medicine : official journal of the Society for Academic Emergency Medicine},
  year={1999},
  volume={6 9},
  pages={957-60}
}