E. VARDARELİ, T. SARIÇAM, S. IŞIKSOY, H. YAVUZ, A. ÖZAKYOL, and B. KIRCALI, “Type 1 gastric carcinoid tumor: another extrahepatic manifestation of hepatitis C virus infection?”, Turkish Journal of Gastroenterology, vol. 14, no. 3, pp. 194–196, Jan. 2003.