Dennis E. Niewoehner, M.D. Volume 362:1407-1416 April 15, 2010 Number 15
A 67-year-old man presents with a history of dyspnea, which has progressed for the past several years. He began smoking cigarettes at 15 years of age and continues to smoke one pack per day. Worsening breathlessness forced him to retire as a laborer, and he has sought emergency care for what he calls bronchitis twice in the past year. His physical examination . .
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