[1] Xiamen Chang Gung Hosp, Dept Digest Dis, Xiamen, Peoples R China
[2] Xiamen Chang Gung Hosp, Dept Radiol, Xiamen, Peoples R China
[3] Xiamen Chang Gung Hosp, Dept Ultrasound, Xiamen, Peoples R China
[4] Xiamen Chang Gung Hosp, Dept Emergency Clin, Xiamen, Peoples R China
[5] Xiamen Chang Gung Hosp, Sleep Ctr, Dept Otolaryngol Head & Neck Surg, Xiamen, Peoples R China
[6] Formosa Biomed Technol Corp, Taipei, Taiwan
[7] Chang Gung Mem Hosp, Dept Gastroenterol & Hepatol, Linkou Branch, Taoyuan, Taiwan
[8] Xiamen Chang Gung Hosp, Dept Digest Dis, 123 Ave Xiafei, Xiamen 361028, Fujian, Peoples R China