Mangunatmadja, I., Department of Child Health, Dr. Cipto Mangunkusumo Tertiary General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Indra, R.M., Department of Child Health, Mohammad Hoesin General Hospital, Universitas Sriwijaya, Medical School, Palembang, Indonesia; Widodo, D.P., Department of Child Health, Dr. Cipto Mangunkusumo Tertiary General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Rafli, A., Department of Child Health, Dr. Cipto Mangunkusumo Tertiary General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia