[1] Amer Univ Beirut, Bone Marrow Transplantat Program, Beirut, Lebanon
[2] Natl Inst Infect Dis, Tokyo, Japan
[3] Univ Paris 07, Hop St Louis, AP HP, U728, Paris, France
[4] Univ Kansas, Med Ctr, Lawrence, KS 66045 USA
[5] Hop Necker Enfants Malad, Paris, France
[6] Univ Coll Dublin, Dublin 2, Ireland
[7] Univ Paris, Hosp St Louis, F-75252 Paris, France