1. Coccygodynia and diseases and deformities of the coccyx;Simpson;Med Times,1859
2. Coccygodynia;Mayer;Ulster Med J,1996
3. The influence of etiology on the results of coccygectomy;Bayne;Clin Orthopaed Related Res,1984
4. Dislocation of the coccyx: A case report;Bergkamp;J Bone Joint Surg.,1995