1. State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Science and Institute of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China
2. School of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China
3. China Meheco Topfond Pharmaceutical Co.; Key Laboratory of Cardio-cerebrovascular Drug, Zhumadian 463000, China