ULCER SITE, NUMBER AND SIZE AS DIFFERENTIATING CRITERIA OF BENIGN VERSUS MALIGNANT GASTRIC ULCERS - BAYSAL, Çağlar; YILMAZ, Uğur; YlLDIRIM, Bülent; ATEŞ, K. Bahri; ÜLKER, Aysel; MÜFTÜOĞLU, Vedia (Turkish Journal of Gastroenterology, 1993)