[1] Childrens Hosp Philadelphia, Div Immunol, Abramson Res Ctr, Joseph Stokes Jr Res Inst, Philadelphia, PA 19104 USA
[2] Univ Penn, Sch Med, Immunol Grad Grp, Philadelphia, PA 19104 USA
[3] Univ Penn, Sch Med, Cell Biol & Physiol Grad Program, Philadelphia, PA 19104 USA
[4] Mt Sinai Sch Med, Dept Genet & Genom Sci, New York, NY 10029 USA
[5] Univ Penn, Dept Microbiol, Philadelphia, PA 19104 USA
[6] Armand Trousseau Childrens Hosp, Assistance Publ Hop Paris, Ctr Reference Pathol Plaquettaires, F-75012 Villejuif, France