1. Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, Aoba-ku, Sendai 981-8558, Japan
2. School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka 422-8526, Japan
3. School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, 14201, Mongolia