title: Commentary: seeing the light.
authors.affiliation: School of Public Health, Edward Ford Building A27, The University of Sydney, NSW 2006, Australia. brucea@health.usyd.edu.au
authors.forename: Bruce K
authors.initials: BK
authors.lastname: Armstrong
mesh_terms: D003110:Colonic Neoplasms / Q000453:epidemiology / Q000517:prevention & control; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology / Q000517:prevention & control*; D013472:Sunlight; D014807:Vitamin D / Q000008:administration & dosage
chemical_list: D014807:Vitamin D