Vector Cardiogram and Anatomy of Atrial Septal Defect

Burger, H. C., van Milaan, J. B., and Den Boer, W. (1952). Brit. Heart J., 14, 401.

Hamer, N. A. J. (1958). Ibid., 20, 215.

Los, I. A. (1963). In the press.

Pileggi, F., Boccalandro, I., Ebaid, M., Malleta, C. A., Tranchesi, J., Macruz, R., and Decourt, L. V. (1961). Amer. Heart J., 62, 447.

Silverblatt, M. L., Rosenfeld, I., Grishman, A., and Donoso, E. (1957). Ibid., 53, 380.

Toscano-Barbosa, E., Brandenburg, R. O., and Burchell, H. B (1956). Proc. Mayo Clin., 31. 513.