Ellis, F Fourth Progress Report on the British Institute of Radiology fractionation study on 3F-week or 5F-week treatment of larynx and pharynx. [electronic resource] - The British journal of radiology Mar 1971 - 211-3 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0007-1285 Standard No.: 10.1259/0007-1285-44-519-211 doi Subjects--Topical Terms: Clinical Trials as TopicFollow-Up StudiesHumansLaryngeal Neoplasms--mortalityPharyngeal Neoplasms--mortalityRadiotherapy DosageTime Factors