ANALYSIS OF FREQUENCY OF DIFFERENT GENOTYPES IL-28B (RS12979860) IN PATIENTS WITH CHRONIC HEPATITIS C, LIVING IN DIFFERENT REGIONS OF UKRAINE Journal title: Гепатологія Authors: A Appelhans, Y Bazhora, E Bahchevan, O Borisova, V Mozgovaya, E.M. Usychenko, E.N. Usychenko Subject(s):