Gravirovska, N. G., & ZalyubovskаО. I. (1). REGIONAL PECULIARITIES OF DUODENUM PEPTIC ULCER PREVALENCE INDEXES AND TENDENCY OF THEIR DEVELOPMENT IN KHARKOV AND DNEPROPETROVSK REGIONS. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", (21), 37-42. Retrieved from https://periodicals.karazin.ua/medicine/article/view/6892