title: Distance relationships in theoretical models of carcinogenesis.
mesh_terms: D004781:Environmental Exposure; D006801:Humans; D008545:Melanoma / Q000453:epidemiology; D008962:Models, Theoretical; D009369:Neoplasms / Q000209:etiology*; D012878:Skin Neoplasms / Q000453:epidemiology; D014466:Ultraviolet Rays / Q000009:adverse effects; D014481:United States