1. Molecular Bacteriology Unit, Eijkman Institute for Molecular Biology, Jakarta, Indonesia
2. School of Life Sciences and Technology Science Program, Institut Teknologi Bandung, Bandung, Indonesia
3. Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jakarta, Indonesia
4. Department of Child Health, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jakarta, Indonesia