1. Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, No. 1160, Shengli Street, Yinchuan 750004, China
2. Kangya of Ningxia Pharmaceuticals Corporation Limited, Yinchuan 750002, China
3. Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China