Mangunatmadja, I., Department of Child Health, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Ismael, S., Department of Child Health, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Sastroasmoro, S., Department of Child Health, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Suyatna, F.D., Department of Clinical Pharmacology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; van Nieuwenhuizen, O., Department of Child Neurology, University Medical Center Utrecht, Netherlands; Cornelis van Huffelen, A., Department of Clinical Neurophysiology, University Medical Center Utrecht, Netherlands