Helicobacter pylori infection in gastric carcinoma in the Van region of Turkey - TÜRKDOĞAN, M. Kürşat; ALICI, Süleyman; İLHAN, Mahmut; DİLEK, Hüsniye; AKMAN, Emel; AYAKTA, Hayati; KARAKÖK, Metin (Turkish Journal of Gastroenterology, 1999)