https://headlines.yahoo.co.jp/hl?a=20180327-00000107-asahi-soci

https://blog.goo.ne.jp/tks-naito/e/2006e6fa10d9fa41609bbab338049e93

http://blog.livedoor.jp/schulze/archives/52210772.html

https://www.bengo4.com/internet/n_7634/

http://www.kyoto-np.co.jp/politics/article/20180330000169

https://www3.nhk.or.jp/news/html/20180329/k10011383231000.html

https://headlines.yahoo.co.jp/hl?a=20180328-00000008-kobenext-soci

https://headlines.yahoo.co.jp/hl?a=20180328-00000003-san-l03

http://taminokoeshimbun.blog.fc2.com/blog-entry-239.html

https://headlines.yahoo.co.jp/hl?a=20180329-00000036-mai-soci

http://www3.nhk.or.jp/lnews/fukui/3055816941.html

https://this.kiji.is/351658803651200097

https://headlines.yahoo.co.jp/hl?a=20180328-00010000-oxv-l04

https://headlines.yahoo.co.jp/videonews/nnn?a=20180328-00000155-nnn-soci

https://www.j-cast.com/2018/03/28324789.html

https://gigazine.net/news/20180326-sleeping-in-2-minutes/

https://twinavi.jp/topics/news/5ab47445-eac4-4989-ba22-07e15546ec81

http://www.data-max.co.jp/300326_dm1718_01/

https://headlines.yahoo.co.jp/hl?a=20180327-00228663-okinawat-soci

http://gendai.ismedia.jp/articles/-/54802

https://www3.nhk.or.jp/news/html/20180326/k10011379371000.html

http://www.nikkei-science.com/201805_036.html

http://www.news-postseven.com/archives/20180321_659894.html

https://headlines.yahoo.co.jp/hl?a=20180326-00000017-rps-soci

http://univ-journal.jp/19827/

http://gendai.ismedia.jp/articles/-/54965

https://nikkan-spa.jp/1457546

https://headlines.yahoo.co.jp/hl?a=20180325-00007610-bengocom-soci

http://www.chunichi.co.jp/article/front/list/CK2018032202000067.html

http://www.data-max.co.jp/ib_rec_post/300323_dm1574_p01/