1. Medical Program, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
2. Integrated Medical Laboratory, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
3. Department of Clinical Microbiology, Dr. Soetomo General Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
4. Division of Pediatrics Emergency and Intensive Care, Department of Pediatrics, Dr. Soetomo General Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.