[1]Fudan Univ, Pancreat Surg Dept, Shanghai Canc Ctr, Shanghai, Peoples R China.
[2]Jiangsu Prov Hosp, Pancreas Ctr, Nanjing, Peoples R China.
[3]Shanxi Prov Canc Hosp, Gastroenterol Dept, Taiyuan, Peoples R China.
[4]Chinese Acad Med Sci, Shanxi Hosp, Canc Hosp, Taiyuan, Peoples R China.
[5]Shanxi Med Univ, Canc Hosp, Taiyuan, Peoples R China.
[6]Cent South Univ, Xiangya Hosp, Biliary Pancreat Surg Dept, Changsha, Peoples R China.
[7]Tianjin Canc Hosp, Airport Hosp, Hepatobiliary Oncol Dept, Tianjin, Peoples R China.
[8]Xi An Jiao Tong Univ, Affiliated Hosp 1, Med Oncol Dept, Xian, Peoples R China.
[9]Jiangsu Canc Hosp, Med Oncol Dept, Nanjing, Peoples R China.
[10]Cent South Univ, Xiangya Hosp 2, Surg Dept, Changsha, Peoples R China.
[11]Hubei Canc Hosp, Surg Oncol Dept, Wuhan, Peoples R China.
[12]Nanjing Univ, Med Sch, Affiliated Drum Tower Hosp, Oncol Dept, Nanjing, Peoples R China.
[13]Fourth Peoples Hosp Xuzhou, Xuzhou Cent Hosp, Med Oncol Dept, Xuzhou, Jiangsu, Peoples R China.
[14]First Hosp Jilin Univ, Oncol Dept, Changchun, Peoples R China.
[15]Jilin Univ, Bethune Hosp 3, Med Oncol Dept, Changchun, Peoples R China.
[16]Shanxi Bethune Hosp, Canc Ctr, Taiyuan, Peoples R China.
[17]Hunan Prov Peoples Hosp, Hepatobiliary Surg Dept, Changsha, Peoples R China.
[18]Guizhou Med Univ, Affiliated Tumor Hosp, Hepatobiliary Surg Dept, Guiyang, Peoples R China.
[19]Tianjin Med Univ, Gen Hosp, Hepatol Surg Dept, Tianjin, Peoples R China.