[1] Swiss Hepatopancreatobiliary Ctr, Div Visceral & Transplantat Surg, Zurich, Switzerland
[2] Univ Hosp, Div Nephrol, Zurich, Switzerland
[3] Biogen Idec Inc, Dept Immunobiol, Cambridge, MA USA
[4] Univ Zurich, Inst Physiol, Zurich, Switzerland
[5] Univ Munich LMU, Med Klin & Poliklin 4, Div Nephrol, Munich, Germany
[6] Yale Univ, Sch Publ Hlth, Epidemiol Microbial Dis, New Haven, CT USA
[7] Rheinisch Westfalische Tech Hsch RWTH Univ Hosp, Dept Nephrol & Clin Immunol, Aachen, Germany
[8] Boston Univ, Sch Med, Dept Microbiol, Boston, MA 02118 USA
[9] Boston Univ, Sch Med, Rheumatol Sect, Boston, MA 02118 USA
[10] TUM, Helmholz Zentrum, Inst Virol, Munich, Germany