Primary papers
Ahlbom, H. E., (1936) Brit. med. J., 2, 331.
Bronner, A. (1913) J. Laryng., 28, 32.
Hurst, A. F., (1926) Guy's Hosp. Rep., 76, 426.
Kelly, A. Brown (1919) J. Laryng., 34, 285.
McKenzie, D. (1918) J. Laryng., 33, 270.
Paterson, D. R., (1906) Brit. med. J. 2, 353.
Paterson, D. R., (1919) J. Laryng., 34, 289.
Vinson, P. P. (1922) Minn. Med., 5, 107.
Cameron, M., (1929) J. Laryng., 44, 168.
Cordray, D. P. (1940) Ann. Otol. (St. Louis), 49, 160.
Darby, W. J. (1946) J. Amer. med. Ass., 130, 830.
Graham, G., and Johnson, R. S., (1932) Quart. J. Med., 25, 41.
Hoover, W. B., (1935) New Engl. J. Med., 213, 394.
Howell, J. T., and Monto, R. W., (1953) New Engl. J. Med., 249, 1009.
Iddles, A. (1954) Delaware med. J., 26, 264.
Jankelson, I. R., (1940) Amer. J. dig. Dis., 7, 252.
Jones, A. Manson, and Owen, R. D., (1928) Brit. med. J., 1, 259.
Kodicek, J. (1954) J. Laryng., 68, 256.
McGee, L. C., and Goodwin, T. M. (1938) Ann. intern. Med., 11, 1498.
McGibbon, J. (1935) J. Laryng., 50, 329.
Martin, G. E., (1937) J. Laryng., 52, 651.
Moerch, H. J., and Conner, H. M., (1926) Arch. Otolaryng., 4, 112.
Owen, R. D., (1950) Proc. roy. Soc. Med., 43, 157.
Simpson, R. R. (1939) J. Laryng., 54, 738.
Simpson, J. F., (1939) J. Laryng., 54, 746.
Suzman, M. N. (1933) Arch. intern. Med., 51, 1.
Witts, L. J., (1931) Guy's Hosp. Rep., 81, 193.
Wynder, E. L., Hultberg, S., Jacobson, F., and Bross, I. J. (1957) Cancer (Philad), 10, 470.