title: AIR AS CONTRAST MEDIUM IN TELECOBALT RADIOGRAPHY. APPLICATIONS IN FIELD CONTROL FOR TELECOBALT THERAPY.
mesh_terms: D000388:Air; D003036:Cobalt Isotopes; D003287:Contrast Media; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms; D008175:Lung Neoplasms; D009303:Nasopharyngeal Neoplasms; D009362:Neoplasm Metastasis; D010157:Palatal Neoplasms; D011859:Radiography; D011867:Radioisotope Teletherapy; D013274:Stomach Neoplasms; D013899:Thoracic Neoplasms; D001749:Urinary Bladder Neoplasms; D002583:Uterine Cervical Neoplasms; D014594:Uterine Neoplasms
chemical_list: D003036:Cobalt Isotopes; D003287:Contrast Media
keywords: AIR; BLADDER NEOPLASMS; CERVIX NEOPLASMS; COBALT ISOTOPES; CONTRAST MEDIA; LARYNGEAL NEOPLASMS; LUNG NEOPLASMS; NASOPHARYNGEAL NEOPLASMS; NEOPLASM METASTASIS; PALATAL NEOPLASMS; RADIOGRAPHY; RADIOISOTOPE TELETHERAPY; STOMACH NEOPLASMS; THORACIC NEOPLASMS; UTERINE NEOPLASMS