title: Spondyloarthritis: A conundrum: classifying patients with SpA in daily practice.
authors.forename: Filip
authors.initials: F
authors.lastname: Van den Bosch
authors.forename: Dirk
authors.initials: D
authors.lastname: Elewaut
mesh_terms: D001416:Back Pain / Q000145:classification / Q000175:diagnosis* / Q000235:genetics* / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D002097:C-Reactive Protein / Q000378:metabolism; D059350:Chronic Pain; D003937:Diagnosis, Differential; D015796:HLA-B27 Antigen / Q000235:genetics; D006801:Humans; D012680:Sensitivity and Specificity; D025241:Spondylarthritis / Q000145:classification / Q000175:diagnosis* / Q000235:genetics* / Q000378:metabolism
chemical_list: D015415:Biomarkers; D015796:HLA-B27 Antigen; D002097:C-Reactive Protein