Jun Yamashita, Hiroshi Itoh, Masanori Hirashima, Minetaro Ogawa, Satomi Nishikawa, Takami Yurugi, Makoto Naito, Kazuwa Nakao, Shin-Ichi Nishikawa,
Flk1-positive cells derived from embryonic stem cells serve as vascular progenitors Nature. ,vol. 408, pp. 92- 96 ,(2000) ,
10.1038/35040568