Stuart L. Silverman, MD, FACP, FACRCedars-Sinai Medical CenterDivision of RheumatologyDepartment of MedicineLos Angeles, CA, USAUniversity of California Los AngelesDavid Geffen School of MedicineLos Angeles, CA, USABo Abrahamsen, MD, PhDUniversity of Southern DenmarkOdense Patient Data Explorative NetworkInstitute of Clinical ResearchOdense, DenmarkHolbæk HospitalDepartment of MedicineHolbæk, Denmark