Palupi-Baroto, R., Department of Child Health, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia; Hermawan, K., Department of Child Health, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia; Murni, I.K., Department of Child Health, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia; Nurlitasari, T., Department of Child Health, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia; Prihastuti, Y., Department of Child Health, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia; Sekali, D.R.K., Department of Child Health, Faculty of Medicine Universitas Indonesia ? Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Ambarsari, C.G., Department of Child Health, Faculty of Medicine Universitas Indonesia ? Cipto Mangunkusumo Hospital, Jakarta, Indonesia