J Dreyer

The Canadian C-spine rule for radiography in alert and stable trauma patients.

A Laupacis, A. Laupacis, M. Schull, 2001, JAMA.

The Canadian CT Head Rule Study for patients with minor head injury: rationale, objectives, and methodology for phase I (derivation).

A Laupacis, A. Laupacis, M. Schull, 2001, Annals of emergency medicine.