http://www.msnbc.msn.com/id/6998205/?GT1=6190
http://story.news.yahoo.com/news?tmpl=story&ncid=1756&e=1&u=/050219/photos_wl/mdf865759
http://www.cnn.co.jp/science/CNN200502200010.html(日本語)
参考:昨年の手術症例
http://www.ananova.com/news/story/sm_863468.html?menu=news.latestheadlines.worldnews