1. Burger, H. C., and van Milaan, J. B. (1946). Brit. Heart J., 8, 157.
2. Burger, H. C., and van Milaan, J. B. (1947). Ibid., 9, 154.
3. Burger, H. C., and van Milaan, J. B. (1948). Ibid., 10, 229.
4. Cantonnet, P., et Milovanovich, J. B. (1947). Compt. Rend. Soc. Biol., 141, 613.
5. Conway, J. F., Cronvich, J. A., and Burch, G. E. (1949). Amer. Heart J., 38, 537.