T. Parvez, B. Parvez, and A. R. Allam, “CANCER ESOPHAGUS: TREATMENT MODALITIES”, Pak Armed Forces Med J, vol. 56, no. 1, pp. 60–67, Mar. 2006, Accessed: Feb. 04, 2025. [Online]. Available: https://pafmj.org/PAFMJ/article/view/1427