http://www3.nhk.or.jp/news/html/20120712/k10013522911000.html
http://mainichi.jp/select/news/20120712k0000e040179000c.html
http://d.hatena.ne.jp/keyword/%A4%B3%A4%EC%A4%DE%A4%C7%A4%CB%B7%D0%B8%B3%A4%B7%A4%BF%A4%B3%A4%C8%A4%CE%A4%CA%A4%A4%A4%E8%A4%A6%A4%CA%C2%E7%B1%AB