title: [Seronegative spondylarthritis in Crohn disease--clinical aspects and HLA association].
authors.forename: J
authors.initials: J
authors.lastname: Purrmann
authors.forename: J
authors.initials: J
authors.lastname: Bertrams
mesh_terms: D003424:Crohn Disease / Q000235:genetics*; D005787:Gene Frequency; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D012307:Risk Factors; D013167:Spondylitis, Ankylosing / Q000235:genetics*
chemical_list: D006680:HLA Antigens
vernacular_title: Seronegative Spondarthritiden bei Morbus Crohn-Klinik und HLA-Assoziation.