AHMAD, H.; ZAMAN, M.; FAROOQI, R. J.; ASHRAF, S. Venous vs Arterial Blood Gases in Acute Exacerbation of COPD. Pakistan Journal of Chest Medicine, [S. l.], v. 25, n. 4, p. 146–150, 2020. Disponível em: https://pjcm.net/index.php/pjcm/article/view/646. Acesso em: 13 apr. 2026.