Blalock, A., AND Kieffer, R. F., JR.: Valvulotomy for relief of congenital valvular pulmonic stenosis with intact ventricular septum; report of 19 operations by Brock method. Ann. Surg., 132: 496, 1950 .
4.
Swan, H., Cleveland, H.C., Mueller, H., AND Blount, S.G.: Pulmonic valvular stenosis; results and technique of open valvuloplasty . J. Thoracic Surg., 28: 504, 1954.
5.
Kay, J.H., AND Thomas, V.: Experimental production of pulmonary insufficiency; physiological and pathological study. A. M. A. Arch. Surg., 69: 646, 1954.
6.
Spencer, F.C. , Muller, W.H., AND Longmire , W.P.: Experimental pulmonic valvulotomy under direct vision by temporarily occluding the pulmonary artery . Ann. Surg., 135: 34, 1952.
7.
Fowler, N.O. , Mannix, E.P., AND Noble, W.: Some effects of partial pulmonary valvectomy . Circulation Res., 4: 8, 1956.
8.
Ratcliffe, J.W. , Hurt, R.L., Belmonte , B., AND Gerbode, F.: The physiologic effects of experimental total pulmonary insufficiency. Surgery , 41: 43, 1957.
9.
Veall, N., Pearson, J.D., Hanley, T., AND Lowe, A.E.: A Method for the Determination of Cardiac Output, p. L194. Butterworth & Co., Ltd., Toronto, Ontario, 1954.
10.
Skackman, R. : Radioactive isotope measurements of cardiac output. Clin. Sc., 17: 317, 1958.
11.
Olesen, K.H. , AND Fabricius, J.: Pulmonic valvular regurgitation during twenty-seven years after gonorrheal endocarditis. Am. Heart J., 52: 791, 1956.