1. Rheumatology Service, IMIBIC/Reina Sofia Hospital University of Cordoba Cordoba Spain
2. Department of Clinical and Biological Sciences, and SCDU Nephrology and Dialysis, Center of Research of Immunopathology and Rare Diseases‐ Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases S. Giovanni Bosco Hospital Turin Italy