Predictive value of tissue cagA status in Helicobacter pylori infection - SARUÇ, Murat; DEMİR, M. Akif; KÜÇÜKMETİN, Nurten; GÜÇLÜ, Feyzullah; ÖZKAYA, Sabriye; KANDİLOĞLU, Ali Rıza; AKARCA, Ulus Salih; YÜCEYAR, Hakan (Turkish Journal of Gastroenterology, 2001)