TY  - RPRT
TI  - Ulcerative perianal lichen planus.
AU  - C M Payne
AU  - J F McPartlin
AU  - P R Hawley
PY  - 1997
DO  - 10.1111/j.1365-2133.1997.tb14983.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9115951/
ID  - 9115951
ER  -