1. Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 201203, People’s Republic of China
2. Duke University Medical Center, Box 2926, SORF, Durham, North Carolina 27710, United States
3. Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
4. Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 40402, Taiwan