Centro della Microcitemia, Anemie Congenite e Dismetabolismo del Ferro, European Reference Networks for rare diseases ERN-EuroBloodNet, Ospedale Galliera, Mura Delle Cappuccine 14, 16128 Genoa, Italy. Electronic address: valeria.pinto@galliera.it. Department of Endocrinology, Sant'Andrea Hospital, via di Grottarossa 1035-1039, 00189 Rome, Italy. Electronic address: mpoggi@ospedalesantandrea.it. Nephrology, Dialysis, and Transplant Unit, Ospedale Policlinico San Martino, Largo R. Benzi 10, 16132 Genoa, Italy. Electronic address: rodolfo.russo@hsanmartino.it. Rheumatology Unit, Department of Locomotor System, La Colletta Hospital - ASL3, Via del Giappone 5, 16011 Arenzano, Italy. Electronic address: andreagiusti6613@gmail.com. Centro della Microcitemia, Anemie Congenite e Dismetabolismo del Ferro, European Reference Networks for rare diseases ERN-EuroBloodNet, Ospedale Galliera, Mura Delle Cappuccine 14, 16128 Genoa, Italy. Electronic address: gianluca.forni@galliera.it.