The roentgenologic diagnosis of early chronic obstructive pulmonary disease.
D000792:Angiography; D001249:Asthma / Q000000981:diagnostic imaging*; D001991:Bronchitis / Q000000981:diagnostic imaging*; D002908:Chronic Disease; D006801:Humans; D008722:Methods; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011656:Pulmonary Emphysema / Q000000981:diagnostic imaging*; D011667:Pulmonary Veins / Q000000981:diagnostic imaging; D012129:Respiratory Function Tests