TY - RPRT TI - Normal female anal sphincter: difficulties in interpretation explained. AU - R C Bollard AU - A Gardiner AU - S Lindow AU - K Phillips AU - G S Duthie PY - 2002 DO - 10.1007/s10350-004-6139-7 UR - https://pubmed.ncbi.nlm.nih.gov/11852328/ ID - 11852328 ER -