References
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- Gentil, Fernando and Coley, Bradley L.: Sacro-coccygeal chordoma. Ann. Surg., 127, 432, 1948. Harvey, W. F. and Dawson, E. K.: Chordoma. Edinburgh M. J., 48, 713, 1941.
- Horwitz, T.: Chordal ectopia and its possible relation to chordoma. A.M.A. Arch. Path., 31, 354, 1941.
- Mabrey, Roy E.: Chordoma. A study of 150 cases. Amer. J. Cancer, 25, 501, 1935.
- Maynard, R. B.: A case of chordoma with pulmonary metastases. Australian & New Zealand J. Surg., 22, 215, 1953.
- Orton, H. B.: Chordoma. Ann. Otol. Rhin. & Laryng., 62, 371, 1953.
- Sennett, Edward: Chordoma. Its roentgen diagnostic aspects and its response to roentgen therapy. Am. J. Roentgenol., 66, 611, 1953.