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<http://cts.businesswire.com/ct/CT?id=bwnews&amp;amp;amp;sty=20121121005615r1&amp;amp;amp;sid=40241&amp;amp;amp;distro=ftp>
<http://www.aol.com/article/2012/11/21/proto-labs-announces-the-full-exercise-of-the-unde/20385926/?gen=1>