1. Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
2. Shandong Provincial Qianfoshan Hospital, Jinan, P. R. China
3. Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P. R. China
4. Department of General Internal Medicine, Ambulatory Treatment and Emergency Care, University of Texas MD Anderson Cancer Center, Houston, TX, USA
5. Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA