Effect of drug-induced pathomorphosis on oral cavity organs and tissues in chronic obstructive pulmonary disease combined with coronary heart disease: A clinical case. Biomed. Res. Ther. [Internet]. 2021 Jan. 29 [cited 2025 Apr. 4];8(1):4197-202. Available from: https://preservation.bmrat.org/index.php/BMRAT/article/view/657