extended surgical operation with preservation of anal sphincter
preservation of anal sphincter
anal sphincter preserve surgery
anal sphincter preserving operation
anal sphincter preserving procedure
anal sphincter reconstruction
artificial anal sphincter
external anal sphincter
internal anal sphincter
rectal and anal sphincter reflexes
Pressure-measuring of the anal sphincter
sphincter preservation operation
Adenocarcinoma of the anal glands
Adenocareinoma of anal canal