http://news.livedoor.com/article/detail/15651988/

https://gigazine.net/news/20181130-phantom-limb-movements-prosthetic-arm/

https://ameblo.jp/kengoal0930/entry-12411903348.html

http://www.chunichi.co.jp/article/feature/newswotou/list/CK2018112502100010.html

https://this.kiji.is/442460509793666145?c=39546741839462401