by Ryoo, H Y, Taga, M, Sassa, T, Oka, T, Natori, Y
Published in Proceedings of the Society for Experimental Biology and Medicine (01.06.1997)

by Araki, Hiromitsu, Ryoo, Young Hong, Eguchi, Motonori, Matsuzaki, Ryoko, Saeki, Yuzo
Published in Bulletin of the Chemical Society of Japan (01.01.1980)