1. Contributions to the Medical and Biological Research. Sir William Osler anniversary volume;Abbott, M.E.,1919
2. Atlas of Congenital Heart Disease;Abbott, M.E.,1936
3. Feldman, L., Friedlander, J., Dillon, R., and Wallyn, R. (1956). Amer. Heart J., 51, 314. Gray's Anatomy (1942). edit. by T. B. Johnston, and J. Whillis, 28th ed., p. 146. Longmans, Green, London.
4. Herson, R. N., and Symons, M. (1946). Brit. Heart J., 8, 125.
5. Higgins, A. R. (1934). U.S. Nav. med. Bull., 32, 47.