Khandoker, M., H. Razwanul, H. Rashadul, A. Sarwar, and U. S. Khatun. “Radio-Frequency Thermal Ablation of Lung Cancer under Epidural Anaesthesia: Comparison of the Effectiveness of Blocks Between Higher and Mid-Thoracic Level”. Journal of the Bangladesh Society of Anaesthesiologists, vol. 17, no. 1, Dec. 2009, pp. 36-38, doi:10.3329/jbsa.v17i1.4050.