Affiliation: | aDepartment of Cellular Signaling, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan b21st century COE program “CRESCENDO”, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan |