title: [The alley B.P.F. (bismuth, lead, tin and cadmium) in irradiation using conforming fields].
mesh_terms: D000497:Alloys; D001729:Bismuth; D002104:Cadmium; D006801:Humans; D007854:Lead; D009369:Neoplasms / Q000532:radiotherapy*; D011878:Radiotherapy / Q000295:instrumentation; D014001:Tin
chemical_list: D000497:Alloys; D002104:Cadmium; D007854:Lead; D014001:Tin; D001729:Bismuth
vernacular_title: La aleación B.P.F. en la irradiación con campos conformados