For citations:
Dobrodeev A.Yu., Afanasyev S.G., Tarasova A.S., Kostromitsky D.N., Avgustinovich A.V., Frolova I.G., Usova A.V., Cheremisina O.V., Spirina L.V. Short-term outcomes of preoperative chemotherapy in patients with upper ampullary rectal cancer. Siberian journal of oncology. 2021;20(6):23-31. (In Russ.) https://doi.org/10.21294/1814-4861-2021-20-6-23-31