[1] Amgen Inc, Uxbridge, Middx, England
[2] Dorset Cty Hosp NHS Fdn Trust, Dorchester, England
[3] Nottingham Univ Hosp NHS Trust, Nottingham, England
[4] Fdn IRCCS Casa Sollievo Sofferenza, San Giovanni Rotondo, Italy
[5] AURA Paris Nord, St Ouen, France
[6] Univ Paris 05, Necker Hosp, Paris, France
[7] Catholic Univ Louvain, Clin Univ St Luc, Dept Nephrol, Brussels, Belgium
[8] Univ Hosp Leuven, Div Nephrol, Dept Immunol & Microbiol, Leuven, Belgium
[9] Arbor Res Collaborat Hlth, Ann Arbor, MI USA
[10] Amgen GmbH, Rotkreuz, Switzerland
[11] UCL, Sch Pharm, London, England
[12] Amgen Inc, Thousand Oaks, CA USA