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https://science.srad.jp/story/18/05/28/1310228/

https://gigazine.net/news/20180529-why-children-not-childs/

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https://www.asahi.com/articles/ASL5L574NL5LPTJB00C.html

http://www.tokyo-np.co.jp/s/article/2018052701002246.html

https://headlines.yahoo.co.jp/hl?a=20180528-00010002-abema-soci&p=1

https://twitter.com/zel_life2000/status/999124698045628416

https://diamond.jp/articles/-/170188

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https://gigazine.net/news/20180526-kingjim-pomera-dm30/

https://www.cnn.co.jp/world/35119814.html

http://news.livedoor.com/article/detail/14736416/

https://digital.asahi.com/articles/DA3S13511563.html

https://mainichi.jp/articles/20180525/ddl/k40/010/306000c

https://gigazine.net/news/20180525-new-orleans-saints-bounty-scandal/

https://news.careerconnection.jp/?p=54396

https://headlines.yahoo.co.jp/hl?a=20180525-00000027-at_s-l22

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