Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease.
Omenn GS; Goodman GE; Thornquist MD; Balmes J; Cullen MR; Glass A; Keogh JP; Meyskens FL; Valanis B; Williams JH; Barnhart S; Hammar S; The New England Journal Of Medicine, 1996, vol. 334, issue 18, p 1150, ISSN 00284793. ISBN 00284793.
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