1. Department of Paediatrics
2. Department of Paediatrics, Osaka Medical Centre and Research Institute for Maternal and Child Health, Izumi
3. Department of Paediatrics, Ehime University, Matsuyama
4. Department of Paediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
5. Department of Nursing and
6. Department of Laboratory Sciences, Kanazawa University, Kanazawa