1. Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China
2. Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China
3. Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
4. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China
5. Liver Cancer Institute, Liver Surgery Department, Zhongshan Hospital
6. The Hormel Institute, University of Minnesota, Austin, Minnesota, USA