title: Invited commentary: old problem, new wrinkles.
authors.affiliation: Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Potter
mesh_terms: D016022:Case-Control Studies; D003111:Colonic Polyps / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D003937:Diagnosis, Differential; D004781:Environmental Exposure / Q000592:standards*; D004784:Environmental Monitoring / Q000592:standards; D004812:Epidemiologic Methods; D062665:Epidemiological Monitoring; D004813:Epidemiology / Q000592:standards*; D006801:Humans; D008403:Mass Screening / Q000592:standards*; D012107:Research Design / Q000592:standards; D018570:Risk Assessment; D012907:Smoking / Q000009:adverse effects; D014028:Tobacco Smoke Pollution
chemical_list: D014028:Tobacco Smoke Pollution