Arora, D., M. Tang, T. Seddon, and M. Rao. “Outcomes Following Abdominoperineal Resection 6 Years Retrospective Study at a Rural District General Hospital”. International Journal of Research in Medical Sciences, vol. 9, no. 3, Feb. 2021, pp. 665-9, doi:10.18203/2320-6012.ijrms20210862.