The relationship of treatment type and epithelial / subepithelial changes in healed dudenal ulcers - ÖZEL, Melih; DEMİRTÜRK, Levent; GÜRBÜZ, Ahmet Kemal; UÇMAKLI, Ergun; YAZGAN, Yusuf; DANACI, Mehmet (Turkish Journal of Gastroenterology, 1998)