1. Digitalis and Angina Pectoris
Dean T. Mason, M.D., F.C.C.P. 
CHEST 
Volume 64, Issue 4, Pages (October 1973)
DOI: /chest
Copyright © 1973 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Effects of digitalis on the principal hemodynamic-related determinants of myocardial oxygen consumption ( M V ˙ O 2 ) in the normal and failing heart (CHF).
CHEST  , DOI: ( /chest )
Copyright © 1973 The American College of Chest Physicians Terms and Conditions