http://mainichi.jp/select/news/20140430k0000e030141000c.html

http://www.amazon.co.jp/exec/obidos/ASIN/B00JXK5FQ2/hatena-bhot-22/ref=nosim

http://www.minyu-net.com/news/news/0430/news11.html

http://alfalfalfa.com/archives/7232332.html

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