[1] St Jude Childrens Res Hosp, Dept Surg, Memphis, TN 38105 USA
[2] Royal Free NHS Trust, Katharine Dormandy Haemophilia Ctr, London, England
[3] Royal Free NHS Trust, Thrombosis Unit, London, England
[4] Guys & St Thomas NHS Fdn Trust, Ctr Haemostasis & Thrombosis, London, England
[5] UCL Canc Inst, Dept Haematol, London, England
[6] Royal Free NHS Trust, KD Haemophilia Ctr, London, England
[7] Stanford Univ, Sch Med, Palo Alto, CA 94304 USA
[8] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[9] St Jude Childrens Res Hosp, Dept Hematol, Memphis, TN 38105 USA
[10] St Jude Childrens Res Hosp, Memphis, TN USA
[11] Childrens GMP LLC, St Jude Childrens Res Hosp, Memphis, TN USA
[12] Childrens Hosp Philadelphia, Ctr Cellular & Mol Therapeut, Philadelphia, PA 19104 USA