Yavorovskyi O, Shkurko H, Chaika Y. Haik Khachaturovych Shakhbazian - organizer of hygiene and sanitary, scientist, teacher, true patriot of the Ukrainian fatherland (in commemoration of the 125-th birth anniversary). Environment & Health. 2021;99(2):72-79. doi:10.32402/dovkil2021.02.072