Haidarzhi, Ye. I., M. H. Holovko, and H. O. Okhrimenko. “Vasoactive Intestinal Polypeptide Level in Gastroesophageal Reflux Disease before and After Surgical Treatment”. Zaporozhye Medical Journal 25, no. 4 (July 20, 2023): 346–351. Accessed July 23, 2024. http://zmj.zsmu.edu.ua/article/view/278576.