Popovych, A., Popovych, I., Popovych, D., Ruzhylo, S. and Żukow, X. (2021) “Relationships between changes in the state of neuroendocrine regulation and immunity in patients of Truskavets’ spa”, Journal of Education, Health and Sport, 11(6), pp. 335–347. doi: 10.12775/JEHS.2021.11.06.036.