BAYSAL, Z. B. (1993) “PERSONALITY CHARACTERISTICS AND PSYCHOLOGICAL SYMTOM PROFILES OF PATIENTS WITH PEPTIC ULCUS”, Turkish Journal of Gastroenterology, 4(1), pp. 115–117. Available at: https://turkjgastroenterol.org/index.php/tjg/article/view/244 (Accessed: 1 January 2026).