Ishankulova Dilorom Kamarovna. Influence of the Premorbid Background on the Clinical and Immunological Picture of Patients at the Stage of Formation of Chronic Bronchitis. CAJMNS [Internet]. 2023Jul.28 [cited 2025Sep.24];4(4):158-63. Available from: https://cajmns.casjournal.org/index.php/CAJMNS/article/view/1681