1. Volume 82, Issue 6, Pages 802-803 (December 1982)
Possible Sites of Rupture at the Aorta Ascendens and the Aortic Arch following Aortic Dissection 
Fotis Charocopos, M.D. 
CHEST 
Volume 82, Issue 6, Pages (December 1982)
DOI: /chest b
Copyright © 1982 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1A
A synclastic surface, where the two centers of curvature lie on the same side of the surface. B. An anticlastic surface, with centers of curvature on opposite sides of it.
CHEST  , DOI: ( /chest b)
Copyright © 1982 The American College of Chest Physicians Terms and Conditions