1. Respiratory Disease in Tungsten Carbide Production Workers
Nancy L. Sprince, M.D., M.P.H., Richard I. Chamberlin, B.S., Charles A. Hales, M.D., Alfred L. Weber, M.D., Homayoun Kazemi, M.D. 
CHEST 
Volume 86, Issue 4, Pages (October 1984)
DOI: /chest
Copyright © 1984 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Chest roentgenogram from subject A6 showing diffuse interstitial infiltrates.
CHEST  , DOI: ( /chest )
Copyright © 1984 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Chest roentgenogram from subject A8 showing diffuse interstitial infiltrates, especially marked in the perihilar regions.
CHEST  , DOI: ( /chest )
Copyright © 1984 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Chest roentgenogram from subject A9 showing diffuse interstitial infiltrates and prominence of the hilar areas. Progression of disease was noted on comparing this film with chest x-ray films from four years previously.
CHEST  , DOI: ( /chest )
Copyright © 1984 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Lung biopsy specimen from left lower lobe from subject A9 showing interstitial fibrosis (original magnification × 100).
CHEST  , DOI: ( /chest )
Copyright © 1984 The American College of Chest Physicians Terms and Conditions