Karapetyan, Marietta A., Nonna Yu. Adamyan, and Siranush R. Aghajanyan. 2023. “CORRECTIVE EFFECT OF BREATHING EXERCISES ON THE HEALTH OF ECOLOGICALLY UNFAVORABLE REGIONAL SCHOOLS CHILDREN”. Proceedings of the YSU B: Chemical and Biological Sciences 57 (1 (260):63-67. https://doi.org/10.46991/PYSU:B/2023.57.1.063.