Dietary fiber and colorectal cancer risk: a nested case-control study using food diaries. - Dahm CC; Keogh RH; Spencer EA; Greenwood DC; Key TJ; Fentiman IS; Shipley MJ; Brunner EJ; Cade JE; Burley VJ; Mishra G; Stephen AM; et al. (JNCI: Journal of the National Cancer Institute, 2010)