Anorectal fistulas.
D000038:Abscess / Q000209:etiology; D000328:Adult; D001004:Anus Diseases / Q000150:complications / Q000601:surgery*; D005260:Female; D005402:Fistula / Q000150:complications / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000150:complications / Q000601:surgery*