Epidemiology of inflammatory bowel disease.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D003424:Crohn Disease / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D005060:Europe; D005260:Female; D006801:Humans; D008297:Male; D008877:Middle East; D009656:North America; D012537:Scandinavian and Nordic Countries; D006113:United Kingdom