SURVEYS OF PARENTS OF CHILDREN WITH OLIGOPHRENIA IN ARMENIA IN VIEW OF THE IMPACT OF ENVIRONMENTAL FACTORS. Proceedings of the YSU B: Chemical and Biological Sciences, [S. l.], v. 46, n. 3 (229), 2022. DOI: 10.46991/PYSUB.2012.45.3.050. Disponível em: https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/7664. Acesso em: 21 jan. 2026.