title: Radiotherapeutic principles and viewpoints.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy*; D003036:Cobalt Isotopes; D005500:Follow-Up Studies; D006801:Humans; D008048:Lip Neoplasms / Q000532:radiotherapy*; D008297:Male; D008339:Mandibular Neoplasms / Q000532:radiotherapy*; D009362:Neoplasm Metastasis; D011874:Radiometry; D013997:Time Factors
chemical_list: D003036:Cobalt Isotopes