[1] Erasmus MC, Rotterdam, Netherlands
[2] Vrije Univ Amsterdam Med Ctr, Dept Hematol, Amsterdam, Netherlands
[3] Erasmus MC, HOVON Data Ctr, Rotterdam, Netherlands
[4] AMC, Amsterdam, Netherlands
[5] Univ Med Ctr Groningen UMCG, Groningen, Netherlands
[6] Isala Clin, Zwolle, Netherlands
[7] St Antonius Hosp, Dept Internal Med, Nieuwegein, Netherlands
[8] Univ Med Ctr Utrecht, Dept Hematol, Utrecht, Netherlands