[1] Capital Med Univ, Beijing Shijitan Hosp, Dept Intervent Therapy, 10 Tieyi Rd, Beijing 100038, Peoples R China
[2] Capital Med Univ, Beijing Shijitan Hosp, Dept Gen Surg, Beijing 100038, Peoples R China
[3] Univ Oklahoma, Hlth Sci Ctr, Coll Med,Dept Internal Med, Sect Hematol Oncol,Stephenson Canc Ctr,Sect Gastr, Oklahoma City, OK 73190 USA
[4] Chinese Acad Med Sci, Canc Hosp, Natl Canc Ctr, Dept Intervent Therapy, Beijing 100021, Peoples R China
[5] Peking Union Med Coll, Beijing 100021, Peoples R China