Ramadhika M., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Iskandar S.D., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Yapiy I., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Susanti Y.E., Faculty of Medicine, Universitas Katolik Atma Jaya, Jakarta, Indonesia; Widjaja M.A., Faculty of Medicine, Universitas Katolik Atma Jaya, Jakarta, Indonesia; Rohsiswatmo R., Department of Child Health, Universitas Indonesia/Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia