1. Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, School of Pharmacy, Henan University, Kaifeng 475004, China
2. State Key Laboratory of Antiviral Drugs, Henan University, Kaifeng 475004, China
3. Kaifeng Key Lab for Application of Local Chrysanthemum Morifolium in Food & Drug, Kaifeng 475004, China
4. Institutes of Traditional Chinese Medicine, Henan University, Kaifeng 475004, China