title: Letter: Colonic and stomach cancers: opposing aetiologies?
mesh_terms: D003110:Colonic Neoplasms / Q000209:etiology* / Q000401:mortality; D005260:Female; D006801:Humans; D008297:Male; D013223:Statistics as Topic; D013274:Stomach Neoplasms / Q000209:etiology* / Q000401:mortality