Shan, Jie A novel and individualized robust optimization method using normalized dose interval volume constraints (NDIVC) for intensity-modulated proton radiotherapy. [electronic resource] - Medical physics Jan 2019 - 382-393 p. digital Publication Type: Journal Article ISSN: 2473-4209 Standard No.: 10.1002/mp.13276 doi Subjects--Topical Terms: Proton Therapy--methodsRadiation DosageRadiotherapy DosageRadiotherapy Planning, Computer-AssistedRadiotherapy, Intensity-Modulated--methods