“CLINICAL EFFICACY OF THE DOMESTIC MUCOLYTIC DRUG ASCEIN (N-ACETYLCYSTEINE) IN THE COMPLEX TREATMENT OF PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE”. 2023. International Bulletin of Medical Sciences and Clinical Research 3 (9): 15-19. https://researchcitations.com/index.php/ibmscr/article/view/2566.