Skoryk, V. R. Diagnostic and Prognostic Value of Tumorspecific Markers (CD117, DOG1, CD34, PDGFR-α), Indicators of Muscle (SMA, MSA, Desmin) and Fat (S100) Differentiation, Expression of Ki-67, p16, p21 in Gastrointestinal Stromal Tumors. Morphologia 2015, 9, 74-82.