Baranowski, M., Wójcicka, A., Czerniakiewicz, K. and Wysokińska-Miszczuk, J. 2020. Examination of the needs of hygienizational patients of periodontological guidelines in Lublin. Journal of Education, Health and Sport. 10, 4 (Apr. 2020), 163–168. DOI:https://doi.org/10.12775/JEHS.2020.10.04.018.