K. Ameer, B. Sohail, W. Shafique, T. Khurshid, I. ul Haq, and R. Iqbal, “COMPARISON OF EFFECTIVENESS OF THORACIC EPIDURAL AND PARAVERTEBRAL BLOCK FOR POST THORACOTOMY PAIN RELIEF: Post Thoracotomy Pain Relief”, Pak Armed Forces Med J, vol. 62, no. 2, pp. 223–7, Jun. 2012, Accessed: Sep. 03, 2025. [Online]. Available: https://www.pafmj.org/PAFMJ/article/view/1675