Nat. Med. 9, 1158–1165 (2003)

Two sentences in this article appeared incorrectly. On page 1164, in the eighth paragraph, the third sentence should read β€œTo the U937-transplanted SCID mice, 1 mg of either SG/17, YN907 or vehicle was injected intravenously, and 20 mg of either AraC or normal saline was injected intraperitoneally on day 7 of transplantation.” On page 1164, in the eighth paragraph, the fourth sentence should read β€œTo NOD-SCID mice transplanted with patients' leukemic cells, 2 mg of either SG/17 or YN907 was injected intravenously, and 40 mg of either AraC or normal saline was injected intraperioneally on days 3 and 4 of transplantation.”