Darko Pucar1, Monique Hinchcliff2. 1. Section of Nuclear Medicine, Department of Radiology and Biomedical Imaging, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06511, USA. darko.pucar@yale.edu. 2. Department of Rheumatology, Allergy and Immunology, Yale University School of Medicine, New Haven, CT, USA.