IMMUNOHISTOCHEMICAL EXPRESSION OF NANOG PROTEIN IN PROSTATE CANCER CELLS OF DISTINCT GRADE GROUPS [ИММУНОГИСТОХИМИЧЕСКАЯ ЭКСПРЕССИЯ БЕЛКА NANOG В КЛЕТКАХ РАКА ПРЕДСТАТЕЛЬНОЙ ЖЕЛЕЗЫ РАЗЛИЧНЫХ ПРОГНОСТИЧЕСКИХ ГРУПП] Article Kudryavtsev G.Y., Kudryavtseva L.V., Mikhaleva L.M., Kudryavtsevа Y.Y., Solovyeva N.A., Osipov V.A., Babichenko I.I. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY. PIROGOV RUSSIAN NATL RESEARCH MEDICAL UNIV. 2020. P. 22-28