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. Author manuscript; available in PMC: 2014 Apr 29.
Published in final edited form as: Med Clin North Am. 2012 Jul;96(4):729–743. doi: 10.1016/j.mcna.2012.05.003

Figure 1A and B.

Figure 1A and B

Figure 1A and B

PA and Lateral chest x-ray of a subject with severe COPD and emphysema. Note the lucency of the lung fields, flattening of the diaphragms, narrowed cardiac silhouette, and paucity of peripheral vascular markings.