[Experimental studies on the appearance of the linear shadow on chest roentgenogram].
D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008961:Models, Structural; D013902:Radiography, Thoracic; D012507:Sarcoidosis / Q000000981:diagnostic imaging