1. Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattera Scientifico (IRCCS) Burlo Garofolo, Trieste, Italy;
2. Optical Imaging Laboratory, Cluster in Biomedicine, Trieste, Italy;
3. Department of Life Sciences, University of Trieste, Trieste, Italy;
4. Laboratory of Immuno-Rheumatology, IRCCS Istituto Auxologico Italiano, Milan, Italy;
5. Department of Internal Medicine, University of Milan, Milan, Italy; and
6. Division of Rheumatology, Istituto G. Pini, Milan, Italy