[Clinicopathological studies of stage I lung cancer--influencing factors for poor prognosis].
D000230:Adenocarcinoma / Q000473:pathology; D000368:Aged; D018288:Carcinoma, Small Cell / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008875:Middle Aged; D011379:Prognosis