[1] Univ Amsterdam, Emma Childrens Hosp, Amsterdam UMC, Pediat Hematol, Meibergdreef 9, Amsterdam, Netherlands
[2] Sanquin Res & Landsteiner Lab, Dept Mol & Cellular Hemostasis, Amsterdam, Netherlands
[3] Univ Fed Minas Gerais, Dept Internal Med, Fac Med, Belo Horizonte, MG, Brazil
[4] IRCCS Humanitas Res Hosp, Ctr Thrombosis & Hemorrhag Dis, Milan, Italy
[5] Univ Bonn, Univ Clin Bonn, Dept Internal Med, Bonn, Germany
[6] Univ Toronto, Dept Pediat, Hosp Sick Children, Div Hematol Oncol, Toronto, ON, Canada
[7] Univ Hamilton, McMaster Univ, Dept Med, Hamilton, ON, Canada
[8] Queens Univ, Dept Pathol & Mol Med, Kingston, ON, Canada
[9] Univ Med Ctr Utrecht, Creveldklin, Dept Hematol, Utrecht, Netherlands
[10] Univ Amsterdam, Amsterdam UMC, Emma Childrens Hosp, Pediat Hematol, Meibergdreef 9, Amsterdam, Netherlands
[11] Leiden Univ, Med Ctr, Dept Clin Epidemiol, Leiden, Netherlands