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      <h1 class="highwire-cite-title" id="page-title">No Significant Difference … Says Who?</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Andrew T. Trout</span>, <span class="highwire-citation-author" data-delta="1">Timothy J. Kaufmann</span> and <span class="highwire-citation-author" data-delta="2">David F. Kallmes</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">February 2007,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">28 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">195-197; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-6757--61054129558" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Andrew T. Trout </div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=Andrew%2BT.%2BTrout%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Trout%20AT&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AAndrew%2BT.%2BTrout%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">Timothy J. Kaufmann </div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=Timothy%2BJ.%2BKaufmann%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Kaufmann%20TJ&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3ATimothy%2BJ.%2BKaufmann%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">David F. Kallmes </div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=David%2BF.%2BKallmes%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Kallmes%20DF&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3ADavid%2BF.%2BKallmes%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div></div></div>  </div>

  
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    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" xmlns:xhtml="http://www.w3.org/1999/xhtml" class="section ref-list" id="ref-list-1"><h2>References</h2><ol class="cit-list"><li><a class="rev-xref-ref" href="#xref-ref-1-1" title="View reference 1 in text" id="ref-1">↵</a><div class="cit ref-cit ref-other" id="cit-28.2.195.1"><div class="cit-metadata"><cite>Bernstein J, McGuire K, Freedman KB. <strong>Statistical sampling and hypothesis testing in orthopaedic research.</strong> <span class="cit-source">Clin Orthop Relat Res</span> <span class="cit-pub-date">2003</span>;<span class="cit-vol">(413)</span>:<span class="cit-fpage">55</span>–62</cite></div><div class="cit-extra"></div></div></li><li><div class="cit ref-cit ref-other no-rev-xref" id="cit-28.2.195.2" data-doi="10.1093/fampra/14.4.324"><div class="cit-metadata"><cite>Fox N, Mathers N. <strong>Empowering research: statistical power in general practice research.</strong> <span class="cit-source">Fam Pract</span> <span class="cit-pub-date">1997</span>;<span class="cit-vol">14</span>:<span class="cit-fpage">324</span>–29</cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6ODoiZmFtcHJhY3QiO3M6NToicmVzaWQiO3M6ODoiMTQvNC8zMjQiO3M6NDoiYXRvbSI7czoxOToiL2FqbnIvMjgvMi8xOTUuYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9" class="cit-ref-sprinkles cit-ref-sprinkles-ijlink"><span><span class="cit-reflinks-abstract">Abstract</span><span class="cit-sep cit-reflinks-variant-name-sep">/</span><span class="cit-reflinks-full-text"><span class="free-full-text">FREE </span>Full Text</span></span></a></div></div></li><li><div class="cit ref-cit ref-other no-rev-xref" id="cit-28.2.195.3"><div class="cit-metadata"><cite>Huang W, LaBerge JM, Lu Y, et al. <strong>Research publications in vascular and interventional radiology: research topics, study designs, and 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class="cit-vol">273</span>:<span class="cit-fpage">H487</span>–93</cite></div><div class="cit-extra"></div></div></li><li><a class="rev-xref-ref" href="#xref-ref-6-1" title="View reference 6 in text" id="ref-6">↵</a><div class="cit ref-cit ref-other" id="cit-28.2.195.6" data-doi="10.1001/jama.1994.03520020048013"><div class="cit-metadata"><cite>Moher D, Dulberg CS, Wells GA. <strong>Statistical power, sample size, and their reporting in randomized controlled trials.</strong> <span class="cit-source">JAMA</span> <span class="cit-pub-date">1994</span>;<span class="cit-vol">272</span>:<span class="cit-fpage">122</span>–24</cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1001/jama.1994.03520020048013&amp;link_type=DOI" class="cit-ref-sprinkles cit-ref-sprinkles-doi cit-ref-sprinkles-crossref"><span>CrossRef</span></a><a href="/lookup/external-ref?access_num=8015121&amp;link_type=MED&amp;atom=%2Fajnr%2F28%2F2%2F195.atom" class="cit-ref-sprinkles 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class="cit-fpage">1</span>–7</cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=12322154&amp;link_type=MED&amp;atom=%2Fajnr%2F28%2F2%2F195.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li></ol></div></div>  </div>

  
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 28</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 2 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">February 2007 </div></div>
      
      
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