[1] Rhein Westfal TH Aachen, Div Nephrol & Immunol, D-52074 Aachen, Germany
[2] Univ Calif San Diego, Rady Childrens Hosp, Div Paediat Nephrol, La Jolla, CA 92093 USA
[3] Indiana Univ Sch Med, Dept Med, Div Nephrol, Indianapolis, IN 46202 USA
[4] Ctr Anna Maria Astori, IRCCS Ist Ric Farmacol Mario Negri, Clin Res Ctr Rare Dis Aldo & Cele Dacco, I-24126 Bergamo, Italy
[5] INSERM, UMR S 1155, F-75020 Paris, France
[6] Univ Paris 06, F-75020 Paris, France
[7] Tenon Hosp, AP HP, Div Nephrol, F-75020 Paris, France