Gupta , Asheesh Kumar, Ashish Kumar Gupta, Achal Gupta, Akshara Gupta, Arun Kumar Pargi, and Rahul Dubepuria. 2015. “Cancers of Anal Canal: A Review Article”. International Journal of Medical Science Research and Practice 2 (2):58-65. https://ijmsrp.isroset.org/index.php/j/article/view/38.