title: Controlled clinical trials in radiotherapy.
mesh_terms: D001984:Bronchial Neoplasms / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging; D002986:Clinical Trials as Topic; D003201:Computers; D006801:Humans; D011379:Prognosis; D011676:Punched-Card Systems; D011859:Radiography; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D013223:Statistics as Topic