Vadzyuk, S., Boliuk, Y., Luchynskyi, M., Sluchyk, V. and Zukow, W. 2020. Crystallographic features of oral fluid in young people with gingivitis. Journal of Education, Health and Sport. 10, 9 (Sep. 2020), 172–182. DOI:https://doi.org/10.12775/JEHS.2020.10.09.019.