Volchenko, N., I. Sokolova, and R. Nazaryan. 2015. “Periodontal Tissue Condition (PMA), Oral Hygiene (OHI-S) and Questionnaire Survey in 9-11-Year Old Schoolchildren With Different Education Load”. Inter Collegas 2 (2), 224-29. https://doi.org/10.35339/ic.2.2.224-229.