TY - RPRT TI - Robust optimization for intensity-modulated proton therapy with soft spot sensitivity regularization AU - Gu, Wenbo AU - Ruan, Dan AU - O'Connor, Daniel AU - Zou, Wei AU - Dong, Lei AU - Tsai, Min-Yu AU - Jia, Xun AU - Sheng, Ke PY - 2019 DO - 10.1002/mp.13344 UR - https://www.osti.gov/biblio/1612697 ID - 1612697 ER -