[1] Taipei Hosp, Dept Pediat, Minist Hlth & Welf, New Taipei City 242, Taiwan
[2] MacKay Med Coll, Dept Med, New Taipei City 252, Taiwan
[3] Hsinchu Municipal MacKay Childrens Hosp, Dept Pediat Gastroenterol Hepatol & Nutr, 690 Sec 2,Guangfu Rd, Hsinchu 300044, Taiwan
[4] MacKay Mem Hosp, Dept Hepatol & Gastroenterol, Taipei City 104, Taiwan
[5] MacKay Childrens Hosp, Dept Pediat Gastroenterol Hepatol & Nutr, Taipei City 104, Taiwan
[6] Mackay Mem Tamshui Branch Hosp, Dept Pediat Gastroenterol Hepatol & Nutr, New Taipei City 251, Taiwan