Pulungan, A., Department of Child Health, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jl. Diponegoro No. 71, Jakarta, 10430, Indonesia; Andarie, A.A., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Soesanti, F., Department of Child Health, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Yassien, M.R., Department of Child Health, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia; De Bruin, C., Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands; Wijaya, A., Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia; Firmansyah, A., Department of Child Health, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Wit, J.M., Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands