1. State
Key Laboratory for the Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, Guangxi Normal University, Guilin, Guangxi 541004, China
2. Ben
May Department for Cancer Research, University of Chicago, Chicago, Illinois 60637, United States
3. Guangxi
Universities Key Laboratory of Stem Cell and Pharmaceutical Biotechnology, Guangxi Normal University, Guilin, Guangxi 541004, China