1. Division of Biomedical Informatics, Course of Health Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Laboratory for Clinical Investigation, Osaka University Hospital, Suita, Osaka, Japan
2. Division of Biomedical Informatics, Course of Health Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
3. Kuma Hospital, Kobe, Hyogo, Japan