TY  - RPRT
TI  - Looking behind: time for anal cancer screening.
AU  - P Volberding
PY  - 2000
DO  - 10.1016/s0002-9343(00)00417-4
UR  - https://pubmed.ncbi.nlm.nih.gov/10856420/
ID  - 10856420
ER  -