1. Massive Fatal Hemoptysis Secondary to Invasive Aspergillosis in a Patient with COPD 
Kyriacos Pittokopitis, M.D., F.C.C.P., Dale T. Herriott, M.D., John K. Shirey, M.D. 
CHEST 
Volume 83, Issue 3, (March 1983)
DOI: /chest a
Copyright © 1983 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Microscopic section of lung; hyphal forms and tissue invasion (methenamine-silver stain, original magnification × 250).
CHEST  , DOI: ( /chest a)
Copyright © 1983 The American College of Chest Physicians Terms and Conditions