Identification of functional endothelial progenitor cells suitable for the treatment of ischemic tissue using human umbilical cord blood - Masumi Nagano; Toshiharu Yamashita; Hiromi Hamada; Kinuko Ohneda; Kenichi Kimura; Tomoki Nakagawa; Masabumi Shibuya; Hiroyuki Yoshikawa; Osamu Ohneda (2007)