1. Hypertrophic Cardiomyopathy
Joram Glaser, M.D. 
CHEST 
Volume 77, Issue 3, (March 1980)
DOI: /chest a
Copyright © 1980 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Aortic valve echogram of a patient with discrete subaortic stenosis. Note the early and abrupt partial closure of the aortic valve leaflets and the coarse flutter through the rest of systole.
CHEST  , DOI: ( /chest a)
Copyright © 1980 The American College of Chest Physicians Terms and Conditions