For citations:
Mamieva Z.A., Poluektova E.A., Kovaleva A.L., Shifrin O.S., Sobolev V.P., Svistushkin V.M., Ulyanin A.I., Tertychnyy A.S., Ivashkin V.T. Colorectal Cancer in Patient with Functional Gastrointestinal Symptoms. Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2021;31(5):66-73. (In Russ.) https://doi.org/10.22416/1382-4376-2021-31-5-66-73