Diet, fecal water, and colon cancer-development of a biomarker

Diet; Vegetarianism; Calcium, Dietary; Apoptosis; Dietary Proteins; Meat; Probiotics; Polyphenols; Prebiotics; Bile Acids and Salts; Mutagens; Biological Markers; Water; Colorectal Neoplasms -- Risk Factors; Colorectal Neoplasms -- Familial and Genetic; Colorectal Neoplasms -- Epidemiology; Epithelial Cells -- Physiology; Feces -- Physiology; Nitric Oxide -- Metabolism