title: [Impressions from a study tour of oncological centers in the U.S.A].
mesh_terms: D006782:Hospitals, Special; D006801:Humans; D009369:Neoplasms / Q000517:prevention & control / Q000628:therapy; D012106:Research; D014481:United States
vernacular_title: Impressões de uma visita de estudio a centros oncológicos dos E.U.