[1] Univ Naples Federico II, Dept Translat Med Sci, Sect Pediat, Via S Pansini 5, I-80131 Naples, Italy
[2] ESPGHAN, Bergamo, Italy
[3] Univ Philippines Manila, St Lukes Med Ctr, Philippine Gen Hosp, Inst Pediat & Child Hlth,Dept Pediat, Quezon City, Philippines
[4] APPSGHAN, Bangkok, Thailand
[5] KEMRI Wellcome Trust Res Programme, Dept Paediat Infect Dis, Kilifi, Kenya
[6] Univ Oxford, Ctr Trop Med & Global Hlth, Oxford, England
[7] CAPGAN, Oxford, England
[8] Univ Childrens Hosp, Cologne, Germany
[9] Hosp Infantil Mexico Dr Federico Gomez, Mexico City, DF, Mexico
[10] LASPGHAN, Cancun, Mexico
[11] Washington Univ, Sch Med, Dept Pediat, St Louis, MO 63110 USA
[12] NASPGHAN, Ambler, PA USA
[13] NASPGHAN, St Louis, MO USA
[14] Mohammed V Univ Rabat, Rabat Childrens Hosp, Fac Med & Pharm Rabat, Rabat, Morocco
[15] PASPGHAN, Rabat, Morocco
[16] Univ Virginia, Dept Pediat, Div Pediat Gastroenterol Hepatol & Nutr, Charlottesville, VA USA
[17] Univ Nacl Mayor San Marcos, Lima, Peru
[18] Univ Peruana Cayetano Heredia, Hosp Nino, Natl Inst Pediat, Lima, Peru
[19] Bristol Royal Hosp Children, Dept Paediat Gastroenterol & Nutr, Bristol, Avon, England
[20] Med Univ Warsaw, Dept Paediat, Warsaw, Poland
[21] Mahidol Univ, Ramathibodi Hosp, Fac Med, Dept Pediat, Bangkok, Thailand