TY  - RPRT
TI  - Postanal sinus: single or different etiologies?
AU  - A E Ponson
AU  - C Festen
PY  - 2001
DO  - 10.1007/s003830000453
UR  - https://pubmed.ncbi.nlm.nih.gov/11294268/
ID  - 11294268
ER  -