title: Cancer--nature, nurture, or both.
authors.forename: R N
authors.initials: RN
authors.lastname: Hoover
mesh_terms: D004200:Diseases in Twins / Q000209:etiology* / Q000235:genetics; D004777:Environment; D006801:Humans; D009369:Neoplasms / Q000209:etiology* / Q000235:genetics*; D018433:Twin Studies as Topic