Dr. Lalitkumar B. Patel, Dr. Yesha V. Patel, and Dr. Jigna Dave. “Role Of Fiber Optic Bronchoscopy (FOB) In The Diagnostic Evaluation Of Non-Resolving Pneumonia”. National Journal of Integrated Research in Medicine, vol. 14, no. 1, Jan. 2024, pp. 01-05, https://nicpd.ac.in/ojs-/index.php/njirm/article/view/3656.