[1] Leiden Univ, Dept Internal Med, Med Ctr, Leiden, Netherlands
[2] Jeroen Bosch Hosp, Dept Internal Med, Shertogenbosch, Netherlands
[3] Amsterdam Univ Med Ctr, Dept Nephrol, Amsterdam Cardiovasc Sci, Amsterdam, Netherlands
[4] Univ Med Ctr Utrecht, Dept Hypertens & Nephrol, Utrecht, Netherlands
[5] Deventer Hosp, Dept Internal Med, Deventer, Netherlands
[6] St Antonius Hosp, Dept Internal Med, Nieuwegein, Netherlands
[7] Spaarne Hosp, Dept Internal Med, Hoofddorp, Netherlands
[8] Haga Hosp, Dept Nephrol, The Hague, Netherlands
[9] Leiden Univ, Dept Internal Med, Med Ctr, Leiden, Netherlands