[1] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Med, Singapore, Singapore
[2] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Paediat Med, Singapore, Singapore
[3] Gleneagles Hosp, Annexe Block 05-37,6A Napier Rd, Singapore 258500, Singapore
[4] KK Hosp, Dept Paediat Med, Camden Med Ctr, Singapore, Singapore
[5] KK Hosp, Dept Paediat Med, Serv Endocrinol, Singapore, Singapore
[6] Gen Hosp, Dept Gastroenterol & Hepatol, Singapore, Singapore
[7] Duke NUS Med Sch, Singapore, Singapore
[8] Khoo Teck Puat Natl Univ, Childrens Med Inst, Singapore, Singapore
[9] Natl Univ Hlth Syst, Div Gastroenterol & Hepatol, Singapore, Singapore
[10] KK Womens & Childrens Hosp, Nutr & Dietet, Singapore, Singapore
[11] Ipoh Gastro Ctr, Ipoh, Malaysia
[12] Hosp Fatimah, Ipoh, Malaysia
[13] Univ Malaya, Dept Med, Div Gastroenterol & Hepatol, Kuala Lumpur, Malaysia
[14] Natl Univ Malaysia, Med Ctr, Dept Med, Unit Gastroenterol & Hepatol, Kuala Lumpur, Malaysia
[15] Univ Sci Malaysia, Sch Med Sci, Kota Baharu, Kelantan, Malaysia
[16] Klin Pakar Y&C, Menglembu, Malaysia
[17] Klnic Chong, Slim River, Perak, Malaysia
[18] Univ Indonesia, Cipto Mangunkusumo Hosp, Fac Med, Div Gastroenterol,Dept Internal Med, Jakarta, Indonesia
[19] Univ Santo Tomas Hosp, Gastroenterol Sect, Manila, Philippines
[20] Med Ctr Manila, Manila, Philippines
[21] Mahidol Univ, Siriraj Hosp, Dept Internal Med, Bangkok, Thailand
[22] Chulalongkorn Univ, Fac Med, Dept Med, GI Motil Res Unit,Div Gastroenterol, Bangkok, Thailand