[1] Bambino Gesu Pediat Hosp, IRCCS, Unit Endocrinol, Rome, Italy
[2] Univ Genoa, IRCCS Ist Giannina Gaslini, Dept Pediat, Genoa, Italy
[3] Univ Genoa, Dept Neurosci Rehabil Ophtalmol Genet Maternal &, Genoa, Italy
[4] Pediat Hosp Giovanni XXIII, Pediat Nephrol & Dialysis Unit, Bari, Italy
[5] Meyer Childrens Univ Hosp, Nephrol Unit, Florence, Italy
[6] Univ Milan, Dept Clin Sci & Community Hlth, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Endocrinol Unit, Milan, Italy
[7] Padua Univ Hosp, Pediat Dept, Dept Womens & Childrens Hlth, Pediat Endocrinol & Auxol Adolescence Unit, Padua, Italy
[8] Santobono Pausilipon Hosp, Pediat Endocrinol Unit, Naples, Italy
[9] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Pediat Nephrol Dialysis & Transplant Unit, Milan, Italy
[10] Univ Milan, Dept Clin Sci & Community Hlth, Giuliana & Bernardo Caprotti Chair Pediat, Milan, Italy
[11] Azienda Osped Univ Padova, Dept Womans & Childs Hlth, Pediat Nephrol Dialysis & Transplant Unit, Padua, Italy
[12] Meyer Childrens Univ Hosp, Auxoendocrinol & Gynecol, Florence, Italy
[13] Santobono Pausilipon Hosp, Pediat Nephrol & Dialysis Unit, Naples, Italy
[14] Pediat Hosp Giovanni XXIII, Pediat Endocrinol & Metab Dis, Bari, Italy
[15] IRCCS Ist Giannina Gaslini, Unit Dialysis, Genoa, Italy