[1] St Antonius Hosp, Dept Internal Med, Nieuwegein, Netherlands
[2] Univ Med Ctr Utrecht, Van Creveldklin, Dept Clin Chem & Haematol, Utrecht, Netherlands
[3] Univ Med Ctr Utrecht, Van Creveldklin, Dept Hematol, Utrecht, Netherlands
[4] St Antonius Hosp, Dept Pulm Dis, Nieuwegein, Netherlands
[5] St Antonius Hosp, Dept Stat, Nieuwegein, Netherlands
[6] Univ Maastricht, Dept Clin Epidemiol & Technol Assessment, Maastricht, Netherlands
[7] Univ Med Ctr Utrecht, Dept Internal Med, Utrecht, Netherlands