Asherson, N. (1939) J. Laryng. and Otol., 54, 691.
Bernheim, , Chevanne, and Roux, (1948) Pédiatrie, 36, 232.
Dunphy, D. L., and Fraser, J. P. (1947) Yale J. Biol. Med., 19, 877.
Galloway, T. C. (1942) Arch. Otol., 36, 516.
Haworth, J. C. (1947) Arch. Dis. Child., 22, 175.
Hippocrates, . “Medical Works.” Trans. Chadwick & Mann. Blackwells, Oxford, 1950. p. 238.
Hirst, O. (1945) Arch. Otol., 41, 301.
Howard, and Robinson, (1948) J. Mt. Sinai Hosp., 15, 101.
Jacoby, N. M., and Sagorin, L. (1954) Arch. Dis. Child., 20, 166.
Kirby, W., and Hepp, V. (1944) J. Amer. Med. Ass., 125, 1019.
Lillie, H. I. (1946) Ann. Otol. Rhinol., 55, 495.
Livingstone, G. H. (1951) Personal communication.
Macbeth, R. G. (1949) Proc. Roy. Soc. Med., 42, 284.
Offret, and Meaux, (1947) Arch. d'Ophtal., 7, 250.
Oringer, (1948) Oral Surg. Med. Path., 1, 842.
Schenck, R. J. (1948) Pract. Oto-rhino-laryng., 10, 472.
Terracol, , Guerrier, and Chalmeton, (1947) Ann. d'otol., 64, 40.
Wilensky, O. W. (1932) Arch. Otol., 15, 805.