KARASU, Zeki, Funda YILMAZ, Galip ERSÖZ, Fulya GÜNŞAR, Yücel BATUR, and Ulus Salih AKARCA. 2001. “Predictive Value of Proliferating Cell Nuclear Antigen Index in Response to Interferon Treatment in Patients With Chronic Viral Hepatitis B and C”. Turkish Journal of Gastroenterology 12 (2):89-94. https://www.turkjgastroenterol.org/index.php/tjg/article/view/1133.