[1] Med Univ Innsbruck, Inst Genet Epidemiol, Innsbruck, Austria
[2] Landeskrankenhaus Hall IT, Dept Internal Med, Hall In Tirol, Austria
[3] Univ Freiburg, Inst Genet Epidemiol, Freiburg, Germany
[4] Univ Freiburg, Dept Med Nephrol & Primary Care 4, Fac Med & Med Ctr, Freiburg, Germany
[5] Univ Freiburg, Inst Genet Epidemiol, Fac Med & Med Ctr, Freiburg, Germany
[6] Friedrich Alexander Univ Erlangen Nurnberg, Dept Hypertens & Nephrol, Erlangen, Germany
[7] Univ Hosp Wurzburg, Div Nephrol, Wurzburg, Germany
[8] Charite Univ Med Berlin, Dept Nephrol & Med Intens Care, Berlin, Germany