[1] NCKU & NCKUH, Coll Med, Tainan, Taiwan
[2] Taipei Vet Gen Hosp, Dept Med, Div Gastroenterol, Taipei, Taiwan
[3] Henry Ford Hlth Syst, Detroit, MI USA
[4] Natl Canc Ctr, Res Inst & Hosp, Goyang, South Korea
[5] Yonsei Univ Hlth Syst, Severance Hosp, Seoul, South Korea
[6] Univ Ulsan, Asan Med Ctr, Coll Med, Seoul, South Korea
[7] Inha Univ, Dept Internal Med, Coll Med, Incheon, South Korea
[8] Associates Oncol Hematol PC, Rockville, MD USA
[9] Golden Biotechnol Corp, New Taipei City, Taiwan