The button sequestrum of eosinophilic granuloma of the skull.

@article{Wells1956TheBS,
  title={The button sequestrum of eosinophilic granuloma of the skull.},
  author={Paul O. Wells},
  journal={Radiology},
  year={1956},
  volume={67 5},
  pages={
          746-7
        }
}
BETA