2007-10-31 NPO法人医療法人もNPO法人 http://www.google.co.jp/gwt/n?mrestrict=chtml&site=search&q=NPO%E6%B3%95%E4%BA%BA&id=36dd2c4285535b2bd7af01fdc67ff021&source=m&output=chtml&hl=ja&ei=zKAoR-j1BZeQrAOn546EAw&ct=res&cd=4&rd=1&u=http%3A%2F%2Fja.wikipedia.org%2Fwiki%2FNPO