Comparing of the efficacy of antacid and combination of antacid and H2RA on active nonvariceal upper gastrointestinal bleeding - ERGİN, Ali; AKSÖZ, Kadir; ÖNDER, Günay; GÖNENÇ, Uğur; YAZICIOĞLU, Nafi; ÜNSAL, Belkıs; KARACA, Himmet; KOŞAY, Sadun (Turkish Journal of Gastroenterology, 1995)