DZHAGIASHVILI, O. V., STOYEVA, T. V. and DRAGOMIRETSKA, O. I. Determination of the clinical and prognostic significance of abdominal syndrome in children with syntropic functionnal gastrointestinal disorders. Journal of Education, Health and Sport. Online. 31 October 2018. Vol. 8, no. 10, pp. 443-450. [Accessed 18 July 2024].