Balla J I, 1980, Aust N Z J Surg, 50, 610, 10.1111/j.1445-2197.1980.tb04207.x
Gay J R, 1953, JAMA, 152, 1698, 10.1001/jama.1953.03690180020006
Gotten N, 1956, JAMA, 162, 865, 10.1001/jama.1956.02970260015005
Greenfield J, 1977, Clin Orthop, 122, 196
Hodgson S P, 1989, Neuro-Orthopedics, 7, 88
Hohl M, 1974, J Bone Joint Surg (Am), 56, 1675, 10.2106/00004623-197456080-00018
Macnab J, 1971, Orthop Clin North Am, 2, 389, 10.1016/S0030-5898(20)31114-7
Norris S H, 1983, J Bone Joint Surg (Br), 65, 608, 10.1302/0301-620X.65B5.6643566
Nygren Å, 1984, Acta Otolaryngol (Stockh) (Suppl 395), 92, 1
Wilkinson L, 1986, SYSTAT. The System for Statistics
Yarnell P R, 1988, Brain Inj, 3, 255, 10.3109/02699058809150950
