AHMAD, H.; ASHRAF, S.; FAROOQI, R.; ZAMAN, M. FREQUENCY OF MODIFIABLE RISK FACTORS IN PATIENTS ADMITTED WITH ACUTE EXACERBATION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE AT PULMONOLOGY UNIT, KHYBER TEACHING HOSPITAL, PESHAWAR. Pakistan Journal of Chest Medicine, [S. l.], v. 19, n. 3, 2015. Disponível em: https://www.pjcm.net/index.php/pjcm/article/view/63. Acesso em: 17 apr. 2026.