Ivasivka, K., E. Paltov, Z. Masna, and I. Chelpanova. 2021. “Dynamics of Changes in the Ultrastructural Characteristics of the Mucosa and Cartilage of the Larynx of Rats at the End of 35 and 42 Days of Experimental Opioid Exposure and After 56 Days With Opioid Withdrawal”. Journal of Education, Health and Sport 11 (9):841-51. https://doi.org/10.12775/JEHS.2021.11.09.099.