Samibayeva, U., A. Oslanov, J. Kadirov, U. Suyarov, and S. Boisunov. “The State of Microflora Respiratory Tract in Patients With COVID -19 Infection Against Pneumonium Background”. Science and Education, vol. 4, no. 2, Mar. 2023, pp. 290-5, https://openscience.uz/index.php/sciedu/article/view/5033.