ALBERTO BENCHIMOL, YEOU-BING LI, E. GREY DIMOND, ROBERT B. VOTH, ARNOLD S. ROLAND,
EFFECT OF HEART RATE, EXERCISE, AND NITROGLYCERIN ON THE CARDIAC DYNAMICS IN COMPLETE HEART BLOCK. Circulation. ,vol. 28, pp. 510- 519 ,(1963) ,
10.1161/01.CIR.28.4.510