title: Present status of the time factor in clinical radiotherapy. I. The historical background of the recovery exponents.
mesh_terms: D001943:Breast Neoplasms / Q000532:radiotherapy; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy; D049673:History, 20th Century; D006801:Humans; D008962:Models, Theoretical; D009369:Neoplasms / Q000532:radiotherapy; D011832:Radiation Injuries; D011855:Radiodermatitis / Q000209:etiology; D011878:Radiotherapy / Q000009:adverse effects / Q000266:history; D011879:Radiotherapy Dosage; D012867:Skin / Q000528:radiation effects; D012878:Skin Neoplasms / Q000532:radiotherapy; D013997:Time Factors