Yannick AllanoreService de Rhumatologie A,Universit. Paris Descartes, Hôpital CochinParis, France. John VargaDepartment of Internal MedicineUniversity of MichiganAnn Arbor, Michigan, USAChristopher P. DentonCentre for RheumatologyThe Royal Free HospitalLondon, United Kingdom Masataka KuwanaDepartment of Allergy and RheumatologyNippon Medical SchoolTokyo, Tokyo, Japan Lorinda ChungStanford MedicineRheumatologyRedwood CityCalifornia, USA Ami ShahClinical and Translational ResearchJohns Hopkins HospitalBaltimore, Maryland, USA