Comparison of Interferon-Gamma (IFNG) +874 T/A Single Nucleotide Polymorphism in Hepatitis C Virus Infected Patients and Non-Infected Controls in Mashhad, Iran oleh Sina Rostami, Alireza Pasdar, Sina Gerayli, Hamed Hatami, Samaneh Sepahi, Fatemeh Nategh, Mojtaba Meshkat, Seyed Mousalreza Hoseini, Mitra Ahadi, Hamid Reza Sima, Hasan Vosughinia, Mohammad Reza Sarvghad, Abbas Esmaeelzade, Hosein Nomani, Homan Mosanan Mozafari, Fariba Rezai Talab, Mohammad Taghi Shakeri, Zahra Meshkat