Ornidazole-based sequential therapy is not effective in Helicobacter pylori eradication in children - BAYSOY, Gökhan; SALTIK TEMİZEL, İnci Nur; USLU, Nuray; BALAMTEKİN, Necati; DEMİR, Hülya; GÜRAKAN, Figen; ÖZEN, Hasan; AKYÖN, Yakut; YÜCE, Aysel (Turkish Journal of Gastroenterology, 2013)