For citations:
Osmanov Z.Kh., Semenov D.Yu., Bogdanov A.P., Koloscova L.E., Sokolov A.V., Vasilyev V.B. Prediction of complications of chronic duodenal ulcer using the method of determining the ratio of the level of melatonin receptors in the mucosa. Grekov's Bulletin of Surgery. 2020;179(4):17-21. (In Russ.) https://doi.org/10.24884/0042-4625-2020-179-4-17-21