HPV	Human papilloma Virus
HIV	Human immunodeficiency virus
SIL	Squamous intra-epithelial lesion
AIN	Anal intra-epithelial neoplasia
HSIL	High-grade intraepithelial lesion
LSIL	Low-grade intraepithelial lesions
SCCA	Squamous cell carcinoma of anus
SISCCA	Superficially invasive squamous cell carcinoma
5-FU	5-Fluorouracil
APR	Abdominoperineal resection
NCCN	National Comprehensive Cancer Network
ANCHOR	Anal-Cancer HSIL Outcomes Research
HRA	High Resolution Anoscopy
ACT	Anal Cancer Trial
OS	Overall survival
PFS	Progression-free survival
CCR	Complete clinical response
PD-1	Programmed death-1
PD-L1	Programmed dealth-ligand 1
ACT	Anal Cancer Trial
ctDNA	Circulating tumor DNA
TIL	Tumor-infiltrating lymphocytes