Geographical prevalence of family history in patients with axial spondyloarthritis and its association with HLA-B27 in the ASAS-PerSpA study

• Désirée van der Heijde,
• Joachim Sieper,
• Clementina López-Medina,
• Anne Boel,
• Floris A van Gaalen,
• Miranda van Lunteren

Affiliations

Désirée van der Heijde

Rheumatology Department, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands

Joachim Sieper

Division of Gastroenterology, Infectious Diseases and Rheumatology, Charité Universitätsmedizin Berlin, Berlin, Germany

Clementina López-Medina

Rheumatology Department, Hôpital Cochin - APHP Centre, Paris, France

Anne Boel

1 Rheumatology, Leiden University Medical Center, Leiden, The Netherlands

Floris A van Gaalen

Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands

Miranda van Lunteren

1 Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands