RESTREPO, R [LOCALIZATION OF ESOPHAGEAL LESIONS IN PENDULUM RADIOTHERAPY]. [electronic resource] - Revista de la Facultad de Medicina, Universidad Nacional de Colombia - 115-39 p. digital Publication Type: Journal Article ISSN: 0120-0011 Subjects--Topical Terms: Biological PhenomenaEsophageal NeoplasmsGastrointestinal DiseasesNeoplasms--radiotherapyPhysiological PhenomenaRadiography, Thoracic