Takai, M An intercomparison of two dynamic treatment techniques, ring scan and spot scan, for head and neck tumors with the Piotron. [electronic resource] - International journal of radiation oncology, biology, physics May 1988 - 1025-31 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0360-3016 Standard No.: 10.1016/0360-3016(88)90028-4 doi Subjects--Topical Terms: Elementary Particles--therapeutic useHead and Neck Neoplasms--radiotherapyHumansMesons--therapeutic useMethodsRadiotherapy Dosage