28: Dosimetric Parameters Correlated with Toxicity with Short Course Radiation in the Neoadjuvant Treatment of Rectal Cancers. (September 2022) - Nijjar, Yugmel; Joseph, Kurian; Thai, JoAnn; Ghosh, Sunita; Yun, Jihyun; Warkentin, Brad; Nijjar, Tirath; Severin, Diane; Tankel, Keith; Fairchild, Alyssa; Usmani, Nawaid