[1] Fudan Univ, Dept Integrat Oncol, Canc Hosp, Shanghai 200032, Peoples R China
[2] Canc Hosp, Comprehens Treatment Grp Hepatobiliary & Pancreat, Shanghai, Peoples R China
[3] Fudan Univ, Dept Biostat & Social Med, Sch Publ Hlth, Shanghai 200032, Peoples R China
[4] Univ Texas MD Anderson Canc Ctr, Dept Gastrointestinal Med Oncol, Houston, TX 77030 USA
[5] Univ Texas MD Anderson Canc Ctr, Dept Radiat Oncol, Houston, TX 77030 USA
[6] Univ Texas MD Anderson Canc Ctr, Integrat Med Program, Houston, TX 77030 USA
[7] Univ Texas MD Anderson Canc Ctr, Dept Behav Sci, Houston, TX 77030 USA
[8] Univ Texas MD Anderson Canc Ctr, Dept Gen Oncol, Houston, TX 77030 USA