Hasabi I, Gudagunti AK, S. A. Body mass index, obstruction of the airflow, dyspnea, and exercise capacity index as predictor of the severity of exacerbations and systemic involvement in patients with COPD. Int J Adv Med [Internet]. 2019 Mar. 25 [cited 2025 Dec. 25];6(2):306-11. Available from: https://www.ijmedicine.com/index.php/ijam/article/view/1604