HLA-B and spondyloarthropathy: Londono Londono J J Santos Santos AM AM Peña Peña P P Calvo Calvo E E Espinosa Espinosa LR LR Reveille Reveille JD JD Analysis of HLA-B 15 and HLA-B27 in spondyloarthritis with peripheral and axial clinical patterns Analysis of HLA-B 15 and HLA-B27 in spondyloarthritis with peripheral and axial clinical patterns BMJ Open BMJ Open 2015 2015 5 5 e009092 e009092 10.1136/bmjopen-2015-009092 10.1136/bmjopen-2015-009092