Nishioka, Hisae
Tooi, Norie
Isobe, Takehisa
Nakatsuji, Norio
Aiba, Kazuhiro
Article History
Received: 8 January 2016
Accepted: 26 August 2016
First Online: 19 September 2016
Competing interests
: N.N. is a shareholder of ReproCELL. H.N., T.I., N.T., and K.A. declare no potential conflicts of interest in association with this study.