1. China-Japanese Joint Institute for Medical and Pharmaceutical Science; Dalian Medical University; No. 9, West Segment of South Lvshun Road Dalian 116044 China
2. College of Basic Medical Sciences; Dalian Medical University; No. 9, West Segment of South Lvshun Road Dalian 116044 China
3. Sankyo Co., Ltd.; 573-13, Denbo Fuji Shizuoka Japan 417-0061