1. L. J. Zeng, G. Lin, and P. Li, Trad. Chin. Pharm. J., 14, 37 (2003).
2. Y. S. Zhang and X. C. Gong, Special Econ. Anim. Plant, 6, 26 (2002).
3. W. X. Liu, Y. Tan, and H. Wang, Res. Pra. Chin. Med., 23, 45 (2009).
4. X. Chen, L. L. Zhu, and F. Y. Xu, Acta Pharm. Sin., 39, 348 (2004).
5. J. Z. Liu and L. Wang, J. Hebei Med. Univ., 28, 188 (2007).