Kyung, Yūsu (November 18, 2020). Dr. コトー診療所. Graphic Medicine (in Japanese). Japan Graphic Medicine Association. Archived from the original on January 20, 2021. Retrieved January 20, 2021.
Kyung, Yūsu (November 18, 2020). Dr. コトー診療所. Graphic Medicine (in Japanese). Japan Graphic Medicine Association. Archived from the original on January 20, 2021. Retrieved January 20, 2021.