Chest films: atypical becomes typical.
D002908:Chronic Disease; D003937:Diagnosis, Differential; D006333:Heart Failure / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008171:Lung Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D011018:Pneumonia, Pneumococcal / Q000150:complications / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic