[1] Univ Coll London Hosp, Haematol Dept, London, England
[2] UCSF Benioff Childrens Hosp Oakland, Hematol Oncol BMT, Oakland, CA USA
[3] Childrens Hosp Philadelphia, Div Hematol, Philadelphia, PA 19104 USA
[4] Mahidol Univ, Ramathibodi Hosp, Bangkok, Thailand
[5] Royal Prince Alfred Hosp, Dept Cell & Mol Therapies, Camperdown, NSW, Australia
[6] Hannover Med Sch, Pediat Hematol Oncol Blood Cell Transplantat, Hannover, Germany
[7] UCL Great Ormond St Inst Child Hlth, London, England
[8] Hop La Timone, Pediat Hematol, Marseille, France
[9] UCLA Med, David Geffen Sch Med, Hematol Oncol, Los Angeles, CA USA
[10] Bluebird Bio Inc, Cambridge, MA USA
[11] IRCCS Bambino Gesu Childrens Hosp, Dept Pediat Hematol Oncol & Cell & Gene Therapy, Rome, Italy
[12] Ann & Robert H Lurie Childrens Hosp, Pediat Hematol, Chicago, IL USA