For citations:
Ivashkin V.T., Mayev I.V., Kaprin A.D., Agapov M.Yu., Andreev D.N., Vodoleev A.S., Zharkova M.Yu., Korolev M.P., Kucheryavyi Yu.A., Lapina T.L., Mayevskaya M.V., Okhlobystin A.V., Pavlov Ch.S., Paraskevova A.V., Pirogov S.S., Poluektova E.A., Rumyantseva D.E., Trukhmanov A.S., Tsarkov P.V., Sheptulin A.A., Shifrin O.S. Early Detection of Oncological Diseases of the Digestive System (Guidelines of the Russian Gastroenterological Association and the Russian Association of Oncologists for Primary Care Physicians). Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2019;29(5):53-74. (In Russ.) https://doi.org/10.22416/1382-4376-2019-29-5-53-74