EFFECT OF OMEPRAZOLE IN THE TREATMENT OF PEPTIC ULCER AND COMPARISON WITH FAMOTIDINE - ARSLAN, Serap; KÖSEOĞLU, Tankut; KARAAĞAOĞLU, Ergün; BAYRAKTAR, Yusuf; KAYHAN, Burhan; TELATAR, Hasan (Turkish Journal of Gastroenterology, 1992)