title: Re: Smoking and colorectal cancer: a 20-year follow-up study of Swedish construction workers.
authors.forename: J
authors.initials: J
authors.lastname: Norstein
mesh_terms: D016022:Case-Control Studies; D015179:Colorectal Neoplasms / Q000209:etiology*; D015986:Confounding Factors, Epidemiologic; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009790:Occupations; D010947:Plants, Toxic; D012306:Risk; D012907:Smoking / Q000009:adverse effects*; D013548:Sweden; D014030:Tobacco, Smokeless / Q000009:adverse effects*