Godovan, V. V., and K. V. Ostapchuk. “Association of CYP2E1*6 Polymorphism of Gene CYP2E1 With the Risk and Severity of Chronic Hepatitis C”. Zaporozhye мedical Journal, vol. 16, no. 3, July 2014, doi:10.14739/2310-1210.2014.3.26034.