Systemic cellular immune response in Helicobacter pylori associated duodenal ulcer and chronic antral gastritis - YÜCEYAR, Hakan; SARUÇ, Murat; KOKULUDAĞ, Ali; TERZİOĞLU, Ender and GÖKSEL, Gamze and İŞİSAĞ, Aydın (Turkish Journal of Gastroenterology, 2000)