BAYSAL, Z. B., C. KAPTANOĞLU, R. ÖNEN, G. SEBER, and D. TEKİN. 1993. “PERSONALITY CHARACTERISTICS AND PSYCHOLOGICAL SYMTOM PROFILES OF PATIENTS WITH PEPTIC ULCUS”. Turkish Journal of Gastroenterology 4 (1):115-17. https://www.turkjgastroenterol.org/index.php/tjg/article/view/244.