The origin of anorectal fistulas.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001004:Anus Diseases / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007239:Infections / Q000175:diagnosis*; D007412:Intestinal Fistula / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000175:diagnosis*