2Lida H, Tachibana S, Kitahara T, et al. Association of head traume with cervical spine injury, spinal cord injury, or both. J Traua, 1999, 46(3) :450.
3Schenarts PJ, Diaz J, Kaiser C, et al. Prospective comparison of admission computed tomographic scan and plain film of the upper cervical spine in trauma patients with altered mental status.J Trauma, 2001, 51 (4) :663.