Perianal Crohn's disease: overview.
Ardizzone
S
S
Department of Clinical Science, L. Sacco University Hospital, Milan, Italy.
Porro
G Bianchi
GB
D001004:Anus Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D003424:Crohn Disease / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D015994:Incidence