Nakamura T, Tsutsumi V, Torimura T, Naitou M, Iwamoto H, Masuda H, Hashimoto O, Koga H, Abe M, Ii M, Kawamoto A, Asahara T, Ueno T, Sata M. Human peripheral blood CD34‐positive cells enhance therapeutic regeneration of chronically injured liver in nude rats. Journal Cellular Physiology. 2012 Jan 11;227(4):1538–52. doi: 10.1002/jcp.22873.