Narzullayev Hayotillo Fayzulla o`g`li, Gadaev A.G, Rahimova M.E, Tosharov F.Z and Hamrayev S.R 2022. Assessment of Endothelial Dysfunction in Patients with Covid-19 Based on Chronic Heart Failure and its Significance in the Effectiveness of the Treatment. Texas Journal of Medical Science. 15, (Dec. 2022), 208–213. DOI:https://doi.org/10.62480/tjms.2022.vol15.pp208-213.