@article{doi:10.1302/0301-620X.39B4.733,
author = {Pyper, J. B.},
title = {EXCISION OF THE COCCYX FOR COCCYDYNIA},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {39-B},
number = {4},
pages = {733-737},
year = {1957},
doi = {10.1302/0301-620X.39B4.733},
url = {https://doi.org/10.1302/0301-620X.39B4.733}
}