The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for Anal Squamous Cell Cancers (Revised 2018).

Reference

Stewart DB, Gaertner WB, Glasgow SC, Herzig DO, Feingold D, Steele SR. 2018. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for Anal Squamous Cell Cancers (Revised 2018). Dis Colon Rectum. 61:755–774. doi:10.1097/DCR.0000000000001114.