title: Progress report. Familial inflammatory bowel disease--heredity or environment?
mesh_terms: D003093:Colitis, Ulcerative / Q000235:genetics*; D003424:Crohn Disease / Q000453:epidemiology / Q000209:etiology / Q000235:genetics* / Q000276:immunology; D004777:Environment; D004926:Escherichia coli / Q000276:immunology; D005006:Ethnicity; D005260:Female; D006680:HLA Antigens / Q000032:analysis; D006801:Humans; D008297:Male; D012737:Sex Factors; D013167:Spondylitis, Ankylosing / Q000235:genetics; D015007:Yersinia / Q000276:immunology
chemical_list: D006680:HLA Antigens