1 Division of Rheumatology and Clinical Immunology, Laboratory of Autoimmunity and Metabolism, Humanitas Research Hospital, Rozzano, Milan, Italy.
2 Division of Rheumatology and Clinical Immunology, Laboratory of Autoimmunity and Metabolism, Humanitas Research Hospital, Rozzano, Milan, Italy; BIOMETRA Department, University of Milan, Italy. Electronic address: carlo.selmi@unimi.it.