Perianal Crohn's disease.
Becker
S A
SA
D001003:Anal Canal / Q000473:pathology*; D001004:Anus Diseases / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D003424:Crohn Disease / Q000150:complications / Q000188:drug therapy* / Q000601:surgery; D006801:Humans; D007557:Israel; D012003:Rectal Fistula / Q000209:etiology / Q000601:surgery*