title: Three agencies to cooperate in largest agricultural study.
authors.forename: N
authors.initials: N
authors.lastname: Volkers
mesh_terms: D000382:Agricultural Workers' Diseases / Q000209:etiology*; D006077:Government Agencies; D006801:Humans; D009316:National Institutes of Health (U.S.); D009369:Neoplasms / Q000209:etiology*; D014481:United States