1. Division of Medical Support; Okayama University Hospital; Okayama Japan
2. Department of Pediatrics; Okayama University Hospital; Okayama Japan
3. Department of BioBank; Okayama University Hospital; Okayama Japan
4. Department of Pediatrics; Hiroshima University Hospital; Hiroshima Japan
5. Field of Medical Technology; Okayama University Graduate School of Health Sciences; Okayama Japan