1. Cheshire, D J E (1970). A classification of the functional end-results of injury to the cervical spinal cord. Paraplegia, 8, 70.
2. Guttmann, L (1973). Spinal Cord Injuries, Comprehensive Management and Research. Blackwell, Oxford.
3. Heider, J S, Weiss, M H, Rosenberg, A W et aL (1975). Management of cervical spinal cord trauma in Southern California. Journal of Neurosurgery, 43, 732.
4. Jochheim, K A (1970). Problems of classification in traumatic paraplegia and tetraplegia. Paraplegia, 8, 80.
5. Kraus, J F, Franti, C E, Riggins, R S . et al. (1975). Incidence of traumatic spinal cord lesions. Journal of Chronic Disease, 28, 471.