1. Clinical Pathology Specialization Programme, Department of Clinical Pathology, Faculty of Medicine, Airlangga University, Dr. Soetomo Hospital, Surabaya, Indonesia.
2. Departement of Pediatrics, Faculty of Medicine, Airlangga University, Dr. Soetomo Hospital, Surabaya, Indonesia.
3. Department of Clinical Pathology, Faculty of Medicine, Airlangga University, Dr. Soetomo Hospital, Surabaya, Indonesia.