title: Introduction: progress and enigmas in cancer epidemiology.
authors.affiliation: Department of Medical Epidemiology, Karolinska Institutet, Stockholm, Sweden.
authors.forename: D
authors.initials: D
authors.lastname: Trichopoulos
authors.forename: H O
authors.initials: HO
authors.lastname: Adami
mesh_terms: D004813:Epidemiology / Q000639:trends; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology*