Oswari, H., Department of Child Health, Gastrohepatology Division, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Alatas, F.S., Department of Child Health, Gastrohepatology Division, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Hegar, B., Department of Child Health, Gastrohepatology Division, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Cheng, W., Department of Child Health, Gastrohepatology Division, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Pramadyani, A., Department of Child Health, Gastrohepatology Division, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Benninga, M.A., Department of Paediatric Gastroenterology and Nutrition, Emma children'S, Hospital, Amsterdam University Medical Centre, Amsterdam, Netherlands; Rajindrajith, S., Department of Paediatrics, University of Colombo, Colombo, Sri Lanka