1. School of Pharmaceutical Science and Technology, Tianjin University, Nankai District, Tianjin 300072, China.
2. National Engineering Research Center of Microbial Medicine, New Drug Research and Development Centre of North China Pharmaceutical Group Corporation, Hebei, Shijiazhuang 050015, China.
3. School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.