R. Khan, S. Siddique, F. Jabeen, A. U. Rehman, F. Javed, and J. H. Qamber, “Role of chest X-ray and Lung Ultrasound in diagnosis and treatment of Children and Infants with Pneumonia”, Pak J Chest Med, vol. 27, no. 4, pp. 352–363, Dec. 2021.