1. Department of Pharmacy; Nanjing University of Chinese Medicine; Nanjing 210023 China
2. Jiangsu Key Laboratory for Functional Substance of Chinese Medicine; Nanjing 210023 China
3. State Key Laboratory Cultivation Base for TCM Quality and Efficacy; Nanjing University of Chinese Medicine; Nanjing 210023 China
4. Department of Pharmacy; China Pharmaceutical University; Nanjing 210009 China
5. Key Laboratory of Xin'an Medicine; Ministry of Education; Anhui Province Key Laboratory of R&D of Chinese Medicine; Anhui University of Traditional Chinese Medicine; Hefei Anhui 230038 China
6. Joint Department of Biomedical Engineering; University of North Carolina at Chapel Hill and North Carolina State University; Raleigh NC 27695 USA