Ying, Jun, Chunhui Jiang, Chunjie Xu, Ye Liu, and Lei Gu. “Utility of Transversus Abdominis Plane Block on Patients Undergoing Transanal Total Mesorectal Excision”. Pakistan Journal of Medical Sciences 39, no. 2 (February 16, 2023). Accessed March 28, 2024. https://pjms.org.pk/index.php/pjms/article/view/7062.