Clinical features and epidemiological data on Crohn's disease in the Basle area.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003424:Crohn Disease / Q000175:diagnosis / Q000453:epidemiology* / Q000401:mortality; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013557:Switzerland