“Semi-Quantitative Analysis of Mirna-21 in Saliva and Blood Plasma as a Non-Invasive Method for Diagnosing Colorectal Cancer, Lung Cancer and Glial Tumors” (2023) Voprosy onkologii, 69(5), pp. 863–870. doi:10.37469/0507-3758-2023-69-5-863-870.