[1] Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Surg, Div Pediat Surg, Kaohsiung 80708, Taiwan
[2] Kaohsiung Med Univ, Coll Med, Fac Med, Dept Surg, Kaohsiung 80708, Taiwan
[3] Taichung Vet Gen Hosp, Dept Surg, Taichung 40705, Taiwan
[4] Vet Gen Hosp, Dept Surg, Div Colon & Rectal Surg, Taipei 11217, Taiwan
[5] Changhua Christian Hosp, Dept Colorectal Surg, Changhua 50006, Taiwan
[6] Natl Chung Hsing Univ, Coll Med, Dept Postbaccalaureate Med, Taichung 40227, Taiwan
[7] Natl Cheng Kung Univ Hosp, Dept Surg, Tainan 70457, Taiwan
[8] Chang Gung Mem Hosp, Dept Surg, Div Colon & Rectal Surg, Kaohsiung 83301, Taiwan
[9] Taipei Med Univ, Shuang Ho Hosp, Div Hematol & Oncol, New Taipei City 23561, Taiwan
[10] Taipei Med Univ, Coll Med, Sch Med, Div Hematol & Oncol,Dept Internal Med, Taipei 11031, Taiwan
[11] Chang Gung Mem Hosp Linkou, Dept Internal Med, Div Hematol Oncol, Taoyuan 33305, Taiwan
[12] Chang Gung Univ, Coll Med, Taoyuan 33305, Taiwan
[13] I Shou Univ, E Da Hosp, Dept Internal Med, Div Hematol Oncol, Kaohsiung 84001, Taiwan
[14] Chang Gung Mem Hosp, Dept Hematol & Oncol, Chiayi 61363, Taiwan
[15] Kaohsiung Vet Gen Hosp, Dept Surg, Div Colorectal Surg, Kaohsiung 81362, Taiwan
[16] Natl Yang Ming Chiao Tung Univ, Sch Med, Taipei 30010, Taiwan
[17] Natl Taiwan Univ Hosp, Dept Oncol, Yunlin Branch, Yunlin 64041, Taiwan
[18] Chang Gung Mem Hosp, Dept Internal Med, Div Hematol & Oncol, Kaohsiung 33305, Taiwan
[19] Natl Taiwan Univ Hosp, Dept Oncol, Taipei 10002, Taiwan
[20] Chung Shan Med Univ Hosp, Dept Surg, Taichung 40201, Taiwan
[21] Kaohsiung Med Univ Hosp, Dept Surg, Div Colorectal Surg, Kaohsiung 80756, Taiwan
[22] Kaohsiung Med Univ, Grad Inst Clin Med, Coll Med, Kaohsiung 80708, Taiwan
[23] Kaohsiung Med Univ, Ctr Canc Res, Kaohsiung 80708, Taiwan
[24] Minist Hlth & Welf, Pingtung Hosp, Pingtung 90054, Taiwan