Ambarsari, C.G., Department of Child Health, Cipto Mangunkusumo Hospital, Universitas IndonesiaJakarta, Indonesia; Tambunan, T., Department of Child Health, Cipto Mangunkusumo Hospital, Universitas IndonesiaJakarta, Indonesia; Pardede, S.O., Department of Child Health, Cipto Mangunkusumo Hospital, Universitas IndonesiaJakarta, Indonesia; Fazlur Rahman, F.H., Department of Child Health, Cipto Mangunkusumo Hospital, Universitas IndonesiaJakarta, Indonesia; Kadaristiana, A., Department of Child Health, Cipto Mangunkusumo Hospital, Universitas IndonesiaJakarta, Indonesia