References
- Bartels J. Practica Oto-rhino-laryng. 1950; 12: 153
- Engelbreth-Holm J., Teilum G., Christensen E. Acta Med. Scandinavka 1944; 118: 292
- Goodhill V. Laryngoscope 1950; 60: 1
- Green W., Farber S. Journ. Bone and Joint Surg. 1942; 24: 499
- Greifenstein A. Arch. Int. Med. 1923; 31: 76
- Hand A. Amer. Journ. Med. Sc 1921; 162: 509
- Imler A. Amer. Journ. Roentg. 1946; 56: 343
- Isingrud J. Nord. Med. 1950; 44: 1876
- Jaffe H., Lichtenstein L. J.A.M.A. 1947; 135: 935
- Jørgsholm B. Acta Radiologica, in press.
- Letterer E. Frankf. Ztschr. f. Path. 1924; 30: 377
- Lichtenstein L., Jaffe H. Amer. Journ. Path. 1940; 16: 595
- Mallory T. Ar. Eng. Journ. Med. 1942; 27: 25
- Schüller A. Fortschr. a. d. Geb. d. Roentg. 1915; 23: 12
- Siwe S. Ztschr. f. Kinderhk. 1933; 55: 212
- Wallgren A. Am. Journ. Dis. Child. 1940; 60: 471