Smoking and mortality among U.S. veterans.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D012907:Smoking / Q000401:mortality*; D013997:Time Factors; D014481:United States