1. Division of Pediatrics, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
2. Department of Fundamental Nursing, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
3. Division of Pediatrics, National Hospital Organization Miyazaki Higashi Hospital, Miyazaki, Japan
4. Department of Infection Control and Clinical Laboratory Medicine, Dokkyo Medical University, Mibu, Japan
5. Division of Surgery, Miyazaki Zenjinkai Hospital, Miyazaki, Japan
6. Departoment of Diagnostic Pathology, University of Miyazaki Hospital, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan