1. Department of Health Care Services Management; Nihon University School of Medicine; Tokyo Japan
2. Department of Pediatrics and Child Health; Nihon University School of Medicine; Tokyo Japan
3. Department of Nursing; Tohoku Fukushi University; Sendai Japan
4. Medical Informatics Center; Tohoku University Hospital; Sendai Japan
5. Division of Pediatrics; Tohoku Medical and Pharmaceutical University; Sendai Japan
6. Department of Medical Informatics; Tohoku University Graduate School of Medicine; Sendai Japan
7. Department of Information Sciences; Toho University; Chiba Japan