Munadzilah, S., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Hegar, B., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Sekartini, R., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Vandenplas, Y., Kidz Health Castle, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium