1. Antunes JC (1992) Syringomyelia. In: Holtzman R, Stein B (eds) Surgery of the spinal cord. Springer, New York, pp 317–329
2. Barber DB, Gall VG (1991) Osteonecrosis: An overuse injury of the shoulder in paraplegia: Case report. Paraplegia 29: 423–426
3. Bayley JC, Cochran TC, Sledge CB (1987) The weight-bearing shoulder: The impingement syndrome in paraplegics. J Bone Joint Surg 69A: 676–678
4. Gerner HJ (1992) Die Querschnittlähmung. Blackwell Wissenschaft, Berlin
5. Guttmann L (1976) Spinal cord injuries; 2nd edn. Blackwell, Oxford