Atakhanova S.Q., Vakhobov B.M. STUDY OF THE IMPACT OF THE COVID-19 PANDEMIC ON THE EFFECTIVENESS OF TREATMENT IN CHRONIC CORONARY HEART DISEASE. oar [Internet]. 2022Nov.12 [cited 2024Nov.27];8(11):87-93. Available from: https://oarepo.org/index.php/oa/article/view/949