title: Strengths and limitations of current epidemiologic studies: vitamin D as a modifier of colon and prostate cancer risk.
authors.affiliation: Department of Nutrition, Harvard School of Public Health, 665 Huntington Ave., Boston, MA 02115, USA. egiovann@hsph.harvard.edu
authors.forename: Edward
authors.initials: E
authors.lastname: Giovannucci
mesh_terms: D003110:Colonic Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D019317:Evidence-Based Medicine; D005260:Female; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D012307:Risk Factors; D014807:Vitamin D / Q000008:administration & dosage*; D014815:Vitamins / Q000008:administration & dosage
chemical_list: D014815:Vitamins; D014807:Vitamin D