http://matome.naver.jp/odai/2137287302606028401

http://www.47news.jp/CN/201501/CN2015010801000628.html

http://www.asahi.com/articles/ASGDQ3TL0GDQUUHB003.html

http://www.asahi.com/articles/ASH184TB6H18ULOB00K.html

http://news.tv-asahi.co.jp/news_society/articles/000042118.html

http://headlines.yahoo.co.jp/hl?a=20150110-00000095-san-soci