EBINUMA, HIROYUKI, DAIICHI PURE CHEMICALS CO, LTD | YAGO, HIROKAZU, DAIICHI PURE CHEMICALS CO., LTD. | AKIMOTO, YUKA, DAIICHI PURE CHEMICALS CO., LTD. | MIYAZAKI, OSAMU, DAIICHI PURE CHEMICALS CO., LTD. | KADOWAKI, TAKASHI, GRADUATE SCHOOL OF MEDICINE | YAMAUCHI, TOSHIMASA, GRADUATE SCHOOL OF MEDICINE | HARA, KAZUO, GRADUATE SCHOOL OF MEDICINE