title: Calculi within an anal fistula tract.
authors.affiliation: Department of Surgery, Faculty of Medicine, University of Khartoum, Sudan.
authors.forename: A H
authors.initials: AH
authors.lastname: Fahal
authors.forename: N O
authors.initials: NO
authors.lastname: Birido
authors.forename: A F
authors.initials: AF
authors.lastname: Gadir
authors.forename: Y E
authors.initials: YE
authors.lastname: el Arabi
mesh_terms: D002137:Calculi / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000150:complications* / Q000601:surgery