[1] Ningxia Med Univ, Sch Pharm, Yinchuan 750000, Peoples R China
[2] Ningxia Med Univ, Ningxia Key Lab Drug Dev & Gener Drug Res, Yinchuan 750000, Peoples R China
[3] Ningxia Med Univ, Ningxia Characterist Tradit Chinese Med Modern Eng, Yinchuan 750000, Peoples R China
[4] Ningxia Med Univ, Coll Basic Med Sci, Yinchuan 750000, Peoples R China