[1] Univ Amsterdam, Acad Med Ctr, Emma Childrens Hosp, Dept Pediat Gastroenterol, Room C2-312,Meibergdreef 9, NL-1105 AZ Amsterdam, Netherlands
[2] Saarland Univ Hosp, Dept Child & Adolescent Psychiat, Homburg, Germany
[3] Royal Childrens Hosp, Paediat Gastroenterol Victoria, Melbourne, Vic, Australia
[4] Univ Iowa, Div Pediat Urol, Iowa City, IA USA
[5] Aarhus Univ Hosp, Dept Pediat, DK-8000 Aarhus, Denmark
[6] Boston Childrens Hosp, Dept Urol, Boston, MA USA
[7] Univ S Florida, Childrens Urol Grp, All Childrens Hosp, Johns Hopkins Med, Tampa, FL USA
[8] Buddhist Med Fdn, Taipei Tzu Chi Hosp, New Taipei, Taiwan
[9] Buddhist Tzu Chi Univ, Sch Med, Hualien, Taiwan