https://news.goo.ne.jp/article/kyodo_nor/life/kyodo_nor-2018122701000644.html

https://headlines.yahoo.co.jp/hl?a=20181228-00000108-kyodonews-soci

http://www.chunichi.co.jp/hokuriku/article/news/CK2018122802100012.html

https://mainichi.jp/articles/20181226/k00/00m/010/146000c

https://www.hokkaido-np.co.jp/article/262638