For citations:
Livzan M.A., Gylka D.S., Skirdenko Yu.P., Nikolaev N.A., Ratnikova O.A. Сombination of ulcerative colitis and infectious endocarditis. Experimental and Clinical Gastroenterology. 2019;(9):101-106. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-169-9-101-106