title: Studies on the transient lung shadow detected by radiographic examination.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology; D007564:Japan; D008171:Lung Diseases / Q000453:epidemiology*; D008297:Male; D008400:Mass Chest X-Ray; D008875:Middle Aged; D009787:Occupational Medicine; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology*