The Canadian CT Head Rule Study for patients with minor head injury: rationale, objectives, and methodology for phase I (derivation).
Stiell IG, Lesiuk H, Wells GA, McKnight RD, Brison R, Clement C, Eisenhauer MA, Greenberg GH, MacPhail I, Reardon M, Worthington J, Verbeek R, Rowe B, Cass D, Dreyer J, Holroyd B, Morrison L, Schull M, Laupacis A; Canadian CT Head and C-Spine Study Group.
Stiell IG, et al.
Ann Emerg Med. 2001 Aug;38(2):160-9. doi: 10.1067/mem.2001.116796.
Ann Emerg Med. 2001.
PMID: 11468612