Subclinical hepatitis C virus infection in Egyptian patients with rheumatic diseases: a multi-center study oleh Safaa Ali Mahran, Alaa A. A. Mohamed, Dalia A. Nigm, M. Z. A. Abu Rahma, S. Abd-Elsalam, Hesham Hamoud, M. Hamdy, M. I. Risha, Ahmad Hamdy, Mohamed M. Abdelkareem, Saad Ghanem, Mohamed Hanafy, Abdelhafeez Moshrif, A. Fehr, Fatma H. ElNouby, A. Osman, Manal M. Hassanien