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    	<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">August 2014,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">35 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1448-1449; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A4047 </span></div>
  
  
  
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<div class="cit ref-cit ref-journal" id="cit-35.8.1448.5" data-doi="10.1097/PRS.0b013e318219c171"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Burns</span>  <span class="cit-name-given-names">PB</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Rohrich</span>  <span class="cit-name-given-names">RJ</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Chung</span>  <span class="cit-name-given-names">KC</span></span></li></ol><cite>. <span class="cit-article-title">The levels of evidence and their role in evidence-based medicine</span>. <abbr class="cit-jnl-abbrev">Plast Reconstr Surg</abbr> <span class="cit-pub-date">2011</span>;<span class="cit-vol">128</span>:<span class="cit-fpage">305</span>–<span class="cit-lpage">10</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1097/PRS.0b013e318219c171&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=21701348&amp;link_type=MED&amp;atom=%2Fajnr%2F35%2F8%2F1448.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">6.</span><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-web" id="cit-35.8.1448.6"><div class="cit-metadata"><cite><span class="cit-auth cit-collab">OCEBM Levels of Evidence Working Group</span>. <span class="cit-article-title">The Oxford levels of evidence 2</span>. <span class="cit-publ-name">Oxford Centre for Evidence-Based Medicine</span>. <span class="cit-comment"><a href="http://www.cebm.net/index.aspx?o=5653">http://www.cebm.net/index.aspx?o=5653</a></span>. <span class="cit-access-date">Accessed May 22, 2014</span></cite></div><div class="cit-extra"></div></div></li><li><span class="ref-label">7.</span><a class="rev-xref-ref" href="#xref-ref-7-1" title="View reference 7. in text" id="ref-7">↵</a>

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