Fruit and vegetable intake and prevalence of colorectal adenoma in a cancer screening trial. - Millen AE; Subar AF; Graubard BI; Peters U; Hayes RB; Weissfeld JL; Yokochi LA; Ziegler RG; Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Project Team (American Journal of Clinical Nutrition, 2007)