[1] Amer Univ Beirut, Med Ctr, Dept Internal Med, Div Hematol & Oncol, Beirut, Lebanon
[2] Mahidol Univ, Dept Pediat, Bangkok, Thailand
[3] Mahidol Univ, Div Hematol & Oncol, Siriraj Thalassemia Ctr, Bangkok, Thailand
[4] Univ Milan, Dept Med, CaGranda Fdn IRCCS, Milan, Italy
[5] Roche Innovat Ctr Basel, Roche Pharma Res & Early Dev, Basel, Switzerland
[6] Roche Innovat Ctr, Roche Pharma Res & Early Dev, New York, NY USA
[7] Res Ctr Julich, Inst Neurosci & Med Brain & Behav INM 7, Julich, Germany
[8] Heinrich Heine Univ Dusseldorf, Med Fac, Inst Syst Neurosci, Dusseldorf, Germany
[9] Boston Childrens Hosp, Dept Lab Med, Boston, MA USA
[10] Harvard Med Sch, Dept Pathol, Boston, MA 02115 USA