Rethinking HLA-B27 Testing: What HLA-B27 Can—and Cannot—Tell Us

¹M. Beaufrère, MD, PhD, F. Costantino, MD, PhD, Rheumatology Department, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt, and Université Paris-Saclay, UVSQ, INSERM UMR1173, Infection & Inflammation, Laboratory of Excellence INFIBREX, Montigny-Le-Bretonneux;
²B. Cherqaoui, MD, PhD, Pediatrics Department, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt, France, and Université Paris-Saclay, UVSQ, INSERM UMR1173, Infection & Inflammation, Laboratory of Excellence INFIBREX, Montigny-Le-Bretonneux, France.

Address correspondence to Dr. F. Costantino, Hôpital Ambroise Paré, 9 Avenue Charles de Gaulle, 92104 Boulogne-Billancourt Cedex, France. Email: felicie.costantino{at}aphp.fr.