A, Neoadjuvant fluorouracil chemoradiotherapy (CRT). B, Neoadjuvant fluorouracil-oxaliplatin CRT, as shown in eTable 2 in Supplement 2. C, Adjuvant fluorouracil chemotherapy (CT) (complete vs near complete, P = .66; complete vs incomplete, P = .69). D, Adjuvant fluorouracil-oxaliplatin CT (complete vs near complete, P = .55; complete vs incomplete P = .65). Percentages refer to 3-year disease-free survival.