Strategies for recruitment to a population-based lung cancer prevention trial: the CARET experience with heavy smokers. Beta-Carotene and Retinol Efficacy Trial

G E Goodman ; B Valanis ; F L Meyskens, Jr ; J H Williams, Jr ; B J Metch ; M D Thornquist ; G S Omenn

Cancer epidemiology, biomarkers & prevention, 1998-05, Vol.7 (5), p.405-412 [Periódico revisado por pares]

United States: American Association for Cancer Research

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