Evaluation of chronic gastritis in patients with Helicobacter pylori associated gastritis, gastroduodenitis and duodenal ulcer disease - BAĞATUR, Nevin; ERALP, Yeşim; ÇELİK, Aykut; DOBRUCALI, Ahmet; BAL, Kadir; TUNCER, Murat; GÖKSEL, Suha; UZUNİSMAİL, Hülya; OKTAY, Ergun (Turkish Journal of Gastroenterology, 1999)