[Current status and problems concerning the treatment of lung cancer].
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000401:mortality / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging