CHANG, Chee Yik. LUNG ABSCESS AND AIR-FLUID LEVEL. Journal of Ayub Medical College Abbottabad, [S. l.], v. 33, n. 2, p. 352–353, 2021. Disponível em: https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/8045. Acesso em: 10 may. 2025.