1. Graduate School of Informatics, Nagoya University, Nagoya, Japan
2. Information and Communications, Nagoya University, Nagoya, Japan
3. Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
4. Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
5. Division of Endoscopy, Shizuoka Cancer Center, Sunto-gun, Japan
6. Information Technology Center, Nagoya University, Nagoya, Japan
7. Research Center for Medical Bigdata, National Institute of Informatics, Tokyo, Japan