1. Casaffourth, C. F. S., and Suberviola, J. (1936). Prensa med. Arg., 23, 193.
2. Cooke, W. T., and White, P. D. (1941). Brit. Heart J., 3, 147.
3. Heart Failure;Fishberg, A.M.,1940
4. Glushien, A. S., and Geer, J. A. (1943-44). Med. Bull. Vet. Admin., 20, 277.
5. Mazzei, E. S. (1931). Rev. de Mid., 48, 493.