[Pathological and clinical studies of cases of hilar type early lung cancer].
D001984:Bronchial Neoplasms / Q000473:pathology; D001999:Bronchoscopy; D002278:Carcinoma in Situ / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D005336:Fiber Optic Technology; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011859:Radiography