Lung cancer: by the time it's detected, it may be too late.
D000368:Aged; D018288:Carcinoma, Small Cell / Q000451:nursing*; D002294:Carcinoma, Squamous Cell / Q000451:nursing*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000451:nursing*; D008297:Male; D008875:Middle Aged