References
- Aurelius, J. R. (1931) Am. J. of Roentgenology, 26, p. 697.
- Barclay, A. E. (1915) Proc. Roy. Soc. of Med., 8, electrotherapy sect, 96
- Brunetti, L. (1925) Fortschr. a. d. Geb. d. Roentgenstr, 33, p. 750.
- Burghard, E. (1926) Arch. f. Kinderheilkunde, 79, p. 292.
- Cabot, R. C. (1934) New England J. of Med, 210, p. 323.
- Conolly, A. E. (1934) Brit. J. of Radiology, New series, 7, p. 764.
- Fleischner, F. (1927) Wiener klin. Wochenschr, 120
- Friedenwald, Feldman and Zinn (1928) Arch. int. Med, 42, p. 521.
- Gruber, G. B. (1911) Munch, med. Wochenschr, 58, p. 1668.
- Haroen and Gerlings (1934) Acta Oto-Laryngica, 19, p. 461.
- Hellmann and Johanna (1919) Brun's Beitr, 449
- Hindse-Nielsen, S. (1933) Hospitalstidende, 76, p. 401.
- Hurst, A. F. (1934) Guy's Hosp. Report, 84, p. 104.
- Jackson, C. (1929) J. Am. Med. Ass, 92, p. 369.
- Mainzer, F. S. (1930) Laryngoscope, 685
- Pesek, G. (1934) Rontgenpraxis, 6, p. 99.
- Quincke, H. I. (1879) Deutsche Arch. f. klin. Med, 24, p. 72.
- Rehfuss
- Schatzki, R. (1933) Acta Radiologica
- Schwartz, G. (1912) Berlin, klin. Wochenschr, 725
- Stewart and Hartfall (1929) J. of Pathol. and Bact, 32, p. 9.
- Tileston