title: Letter: The NSD concept and radioresistant tumours.
mesh_terms: D002470:Cell Survival; D004307:Dose-Response Relationship, Radiation; D005260:Female; D006801:Humans; D008433:Mathematics; D009369:Neoplasms / Q000532:radiotherapy*; D011879:Radiotherapy Dosage; D012878:Skin Neoplasms / Q000532:radiotherapy; D002583:Uterine Cervical Neoplasms / Q000532:radiotherapy