1. Volume 91, Issue 3, Pages 473-474 (March 1987)
Artificial Sapphire Contact Endoprobe with Nd-YAG Laser in the Treatment of Subglottic Stenosis 
Atul C. Mehta, M.D., F.C.C.P., Douglas R. Livingston, D.O., Joseph A. Golish, M.D., F.C.C.P. 
CHEST 
Volume 91, Issue 3, Pages (March 1987)
DOI: /chest b
Copyright © 1987 The American College of Chest Physicians Terms and Conditions

2. Figure 1
(A) Granulation tissue producing 60 percent obstruction of the trachea above the tracheostomy showing no laser effects after 3,228 joules. (B) “U”-shaped track produced by artificial sapphire contact endoprobe using 1,813 joules.
CHEST  , DOI: ( /chest b)
Copyright © 1987 The American College of Chest Physicians Terms and Conditions