Khan, Ishtiaq Ali, et al. “MANAGEMENT OF THORACIC TRAUMA: EXPERIENCE AT AYUB TEACHING HOSPITAL, ABBOTTABAD”. Journal of Ayub Medical College Abbottabad, vol. 21, no. 1, Mar. 2009, pp. 152-4, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/3806.