2015年 EFFECT OF FEEDER-FREE CULTURE SYSTEM FOR QUALITY OF HUMAN IPS CELLS International Society for Stem Cell Research, ISSCR 2015、Stockholm, Sweden Masato Nakagawa, Miyuki Ono, Yuka Sawamura, Yuka Kawahara, Mio Iwasaki, Yu Nomura, Ito Miyashita, Shinya Yamanaka