title: Erratum for the Research Article: "Integration of Hedgehog and mutant FLT3 signaling in myeloid leukemia" by Y. Lim, L. Gondek, L. Li, Q. Wang, H. Ma, E. Chang, D. L. Huso, S. Foerster, L. Marchionni, K. McGovern, D. N. Watkins, C. D. Peacock, M. Levis, B. D. Smith, A. A. Merchant, D. Small, W. Matsui.