1 Institute for Clinical and Translational Science, Nara Medical University Hospital, 840 Shijo-cho, Kashihara, Nara 634-8521 Japan.
2 Department of Health Informatics, Graduate School of Medicine & School of Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501 Japan.
3 Bioethics Supervisory Office, Nara Medical University Hospital, 840 Shijo-cho, Kashihara, Nara 634-8521 Japan.
4 Diabetes Center, National Hospital Organization Kyoto Medical Center, 1-1 Fukakusamukaihata-cho, Fushimi-ku, Kyoto, 612-8555 Japan.
5 Diabetes Therapeutics and Research Center Institute of Advance Medical Sciences, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima, Tokushima 770-8503 Japan.