ZAMAN, M.; ASHRA, S.; ASHRAF, A. PULMONARY FUNCTION TESTS AND CHEST X-RAY FINDINGS IN COAL-MINE WORKERS WITH RESPIRATORY SYMPTOMS. Pakistan Journal of Chest Medicine, [S. l.], v. 12, n. 1, 2015. Disponível em: https://pjcm.net/index.php/pjcm/article/view/207. Acesso em: 30 may. 2026.