[1] Roswell Pk Canc Inst, Buffalo, NY 14263 USA
[2] Med City Childrens Hosp, Div Pediat Hematol Oncol, Dallas, TX USA
[3] Hoffmann La Roche Inc, Nutley, NJ 07110 USA
[4] Univ Nebraska, Coll Publ Hlth, Dept Biostat, Omaha, NE 68182 USA
[5] New York Med Coll, Dept Pediat, Valhalla, NY 10595 USA
[6] Univ Utah, Dept Pathol, Salt Lake City, UT USA
[7] Univ Hawaii, Div Pediat Hematol Oncol, Honolulu, HI 96822 USA
[8] Ohio State Univ, Columbus, OH 43210 USA
[9] New York Med Coll, Dept Med, Valhalla, NY 10595 USA
[10] New York Med Coll, Dept Pathol, Valhalla, NY 10595 USA
[11] New York Med Coll, Dept Microbiol, Valhalla, NY 10595 USA
[12] New York Med Coll, Dept Cell Biol & Anat, Valhalla, NY 10595 USA