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