1. Wilson, E. B., and Maher, H. C.: Amer. J. Cancer, 16:227, 1932.
2. Ellinger, F., and Landsman, H.: N.Y. J. Med., 44:259, 1944.
3. Jacobson, P. H.: Millbank Mem. Fund. Quart., 26:90, 1948.
4. Warren, S., and LeCompte, P. M.: The Pathology of Diabetes Mellitus. Lea & Febiger, Philadelphia, 1952, p. 268.
5. Marble, A.: N. Engl. J. Med., 211:339, 1934.