title: An epidemiological study of Crohn's disease in Northeast Scotland.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001789:Blood Group Antigens; D002648:Child; D002675:Child, Preschool; D003424:Crohn Disease / Q000175:diagnosis / Q000453:epidemiology* / Q000235:genetics / Q000473:pathology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009790:Occupations; D012424:Rural Population; D012606:Scotland; D012737:Sex Factors; D012923:Social Class; D014505:Urban Population
chemical_list: D001789:Blood Group Antigens