title: Re: "Tobacco, alcohol, and colorectal tumors: a multistep process".
authors.forename: A I
authors.initials: AI
authors.lastname: Neugut
mesh_terms: D000236:Adenoma / Q000209:etiology*; D000428:Alcohol Drinking / Q000009:adverse effects*; D015179:Colorectal Neoplasms / Q000209:etiology*; D006801:Humans; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*