Volchenko, N., I. Sokolova, and R. Nazaryan. “Periodontal Tissue Condition (PMA), Oral Hygiene (OHI-S) and Questionnaire Survey in 9-11-Year Old Schoolchildren With Different Education Load”. Ukrainian Journal of Translational Medicine (formerly Inter Collegas) 2, no. 2 (April 21, 2015): 224-229. Accessed October 16, 2026. https://inter.knmu.edu.ua/article/view/70.