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  <h1><span itemprop="name">New guidelines for metformin and
      diabetes mellitus</span></h1>
  <p><span itemprop="author" itemscope itemtype="http://schema.org/Person">
    <span itemprop="name">Dr. John Smith</span>
    <br><span itemprop="affiliation">Medical University</span>
  </span>
  <br><span itemprop="datePublished">2012-03-24</span></p>
  <p><b>Abstract:</b>
  <span itemprop="description">We review clinical evidence related to the use of metformin for
  treatment of type-2 diabetes mellitus and provide new clinical guideline
  recommendations.</span></p>
  <p><b>MeSH subject headings:</b>
  <span itemprop="about" itemscope itemtype="http://schema.org/Drug">
    <span itemprop="name">Metformin</span>
    <span itemprop="code" itemscope
          itemtype="http://schema.org/MedicalCode"
          itemid="http://www.ncbi.nlm.nih.gov/mesh/D02.078.370.141.450">
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  <span itemprop="about" itemscope itemtype="http://schema.org/MedicalCondition">
    <span itemprop="name">Diabetes Mellitus, Type 2</span>
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  ...
  <h3>Guidelines</h3>
  <span itemscope itemtype="http://schema.org/MedicalGuidelineRecommendation">
    Recommendation: we recommend monotherapy with
    <span itemprop="subject">metformin</span> as an initial pharmacologic therapy
    to treat most patients with <span itemprop="subject">type 2 diabetes</span>
    (Grade: <span itemprop="recommendationStrength">strong recommendation</span>;
    <a itemprop="evidenceLevel" href="http://schema.org/EvidenceLevelA">high-quality
      evidence</a>).
  </span>
</div>

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  <h1><span property="name">New guidelines for metformin and
      diabetes mellitus</span></h1>
  <p><span property="author"  typeof="Person">
    <span property="name">Dr. John Smith</span>
    <br><span property="affiliation">Medical University</span>
  </span>
  <br><span property="datePublished">2012-03-24</span></p>
  <p><b>Abstract:</b>
  <span property="description">We review clinical evidence related to the use of metformin for
  treatment of type-2 diabetes mellitus and provide new clinical guideline
  recommendations.</span></p>
  <p><b>MeSH subject headings:</b>
  <span property="about"  typeof="Drug">
    <span property="name">Metformin</span>
    <span property="code"  typeof="MedicalCode"
          resource="http://www.ncbi.nlm.nih.gov/mesh/D02.078.370.141.450">
      <!-- Note: use of itemid is not mandatory, but recommended when an
           external enumeration is available -->
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      <meta property="codingSystem" content="MeSH"/>
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    <span property="name">Diabetes Mellitus, Type 2</span>
    <span property="code"  typeof="MedicalCode"
          resource="http://www.ncbi.nlm.nih.gov/mesh/C18.452.394.750.149">
      <!-- Note: use of itemid is not mandatory, but recommended when an
           external enumeration is available -->
      <meta property="code" content="C18.452.394.750.149"/>
      <meta property="codingSystem" content="MeSH"/>
    </span>
  </span>
  </p>
  ...
  <h3>Guidelines</h3>
  <span  typeof="MedicalGuidelineRecommendation">
    Recommendation: we recommend monotherapy with
    <span property="subject">metformin</span> as an initial pharmacologic therapy
    to treat most patients with <span property="subject">type 2 diabetes</span>
    (Grade: <span property="recommendationStrength">strong recommendation</span>;
    <a property="evidenceLevel" href="http://schema.org/EvidenceLevelA">high-quality
      evidence</a>).
  </span>
</div>

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