[Simple thoracic radiography in pulmonary cancer--on squamous epithelial cancer originating in the main bronchus].
D000368:Aged; D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging*; D001995:Bronchography; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011667:Pulmonary Veins / Q000000981:diagnostic imaging