ASHRAF, M. Z.; ASLAM, W.; SALMAN, F.; ALI NAQVI, S. M. .; SAEED, M. S. . Six Minute Walk Distance and Forced Expiratory Volume in First Second on Spirometry in Chronic Obstructive Pulmonary Disease. Pakistan Journal of Chest Medicine, [S. l.], v. 27, n. 3, p. 121–125, 2021. Disponível em: https://pjcm.net/index.php/pjcm/article/view/706. Acesso em: 3 apr. 2026.