244 lines
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244 lines
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<!--***********************change issue date and title below**********************-->
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<title>Supplementary Concept Records (Additional Substance Names)Added to Entrez MeSH® Database. NLM Technical Bulletin. 2004 Sep-Oct</title>
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<meta name="DC.Subject.IssueNum" content="340" />
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<meta name="DC.Subject.IssueCover" content="/pubs/techbull/so04/so04_issue_cover.html" />
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<meta name="DC.Subject.Keyword" content="Editor's Note" />
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<meta name="DC.Subject.Keyword" content="Entrez" />
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<meta name="DC.Subject.Keyword" content="feature" />
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<meta name="DC.Subject.Keyword" content="Indexing" />
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<meta name="DC.Subject.Keyword" content="Limits" />
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<meta name="DC.Subject.Keyword" content="Medical Literature Analysis and Retrieval System" />
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<meta name="DC.Subject.Keyword" content="Medical Subject Headings" />
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<meta name="DC.Subject.Keyword" content="MeSH Browser" />
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<meta name="DC.Subject.Keyword" content="MeSH Database" />
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<meta name="DC.Subject.Keyword" content="Substance Name" />
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<meta name="DC.Subject.Keyword" content="Supplementary Concept Records" />
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<meta name="DC.Subject.Keyword" content="Update" />
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<tr><td width="30"> </td><td width="470"><font size="2"><strong>October 1, 2004</strong> [posted]<br />
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<strong>March 11, 2005</strong> <a href="#note">[posted]</a></font><br /></td><td width="30"> </td></tr>
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<tr><td width="30"> </td><td width="470">
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<tr><td width="30"> </td><td width="470"><font size="5"><strong>Supplementary Concept Records (Additional Substance Names) Added to Entrez MeSH® Database</strong></font><br /></td><td width="30"> </td></tr>
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<tr><td width="30"> </td><td width="470">
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<p>
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ver 140,000 Supplementary Concept Records (SCRs) will soon be added to the <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=mesh">Entrez MeSH® database</a>. The addition of these terms means the MeSH database now contains the full MeSH vocabulary. Unlike MeSH headings which are updated once a year, SCRs, can be added to the vocabulary at any time.
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</p>
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<em><a name="#note">[Editor's Note:</a> This enhancement was implemented in PubMed on October 14, 2004.]</em>
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</p>
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<p>
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<strong>Retrieval Display</strong><br />
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These terms will display in search retrieval with the label [Substance Name]. The Summary format may include some notation information and the date the term was added to the MeSH vocabulary (see <a href="#fig1">Figure 1</a>).
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<a name="fig1" id="fig1"> </a>
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<img src="/pubs/techbull/so04/graphics/srcs_fig1.gif" alt="figure 1: graphic" />
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</center>
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<p>
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The Full display may include the following additional data:<br />
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Registry Number(s) <br />
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Heading Mapped to (the MeSH heading applied to all records indexed with this substance name)<br />
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Entry Terms <br />
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Previous Indexing information<br />
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<br />
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To see complete information for any term, use the link to the NLM MeSH Browser from the Links menu (see <a href="#fig2">Figure 2</a>).
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</p>
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<center>
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<a name="fig2" id="fig2"> </a>
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<img src="/pubs/techbull/so04/graphics/srcs_fig2.gif" alt="figure 2: graphic" />
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</center>
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<strong>Searching</strong><br />
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The Entrez MeSH database serves as a tool for finding MeSH vocabulary terms, and should be searched one concept at a time.
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<p>
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Some substance names are long and "complicated." Please note also that when searching any Entrez database for a term with parentheses, e.g., 1,4-bis(chloromethyl)benzene, do not enter the parentheses (see <a href="#fig3">Figure 3</a>).
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</p>
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<center>
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<a name="fig3" id="fig3"> </a>
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<img src="/pubs/techbull/so04/graphics/srcs_fig3.gif" alt="figure 3: graphic" />
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</center>
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<p>
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You may find the Suggestions provided with your search retrieval particularly helpful in locating terms for chemical substances.
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</p>
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<p>
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In addition to searching directly for a term, you can browse in the Index (from the Preview/Index screen) to find searchable terms. Enter a term and click on the Index button. You can limit your browsing to terms from a particular field using the menu to the left of the entry box (see <a href="#fig4">Figure 4</a>).
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</p>
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<center>
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<a name="fig4" id="fig4"> </a>
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<img src="/pubs/techbull/so04/graphics/srcs_fig4.gif" alt="figure 4: graphic" />
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</center>
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<br />
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<strong>Limiting</strong><br />
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Substance Name and Registry Number have been added as options on the Limits screen for the MeSH database (see <a href="#fig5">Figure 5</a>).
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<center>
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<a name="fig5" id="fig5"> </a>
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<img src="/pubs/techbull/so04/graphics/srcs_fig5.gif" alt="figure 5: graphic" />
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</center>
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<p>
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Terms from your search retrieval may be selected for searching in PubMed by using the check box next to each term along with the Send to Search Box feature. Or, when selecting one term for searching, you may use the link to PubMed on the Links menu to the right of each entry (see <a href="#fig2">Figure 1</a>).
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</p>
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<p>
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Data displayed in the MeSH database is provided by <a href="http://www.nlm.nih.gov/mesh/meshhome.html">NLM's MeSH Section</a>. More information about the MeSH database can be found in the article, <a href="http://www.nlm.nih.gov/pubs/techbull/ma03/ma03_mesh.html">Canese K. New Entrez Database: MeSH. NLM Tech Bull. 2003 Mar-Apr;(331):e13. </a>.
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</p>
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<br /><br />
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<p>
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<strong>By Annette M. Nahin</strong><br />
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<strong>MEDLARS Management Section</strong><br />
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</p>
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<!--************************indicate indexing terms below**********************-->
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<!--<p><strong>Indexing Terms</strong></p>
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<p>PubMed. Supplementary Concept Records. Entrez MeSH database contains full MeSH vocabulary.</p>
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<p>Entrez Databases. Supplementary Concept Records added to MeSH Database.</p>
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-->
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<em>Nahin AM. Supplementary Concept Records (Additional Substance Names)Added to Entrez MeSH® Database. NLM Tech Bull. 2004 Sep-Oct;(340):e5.</em>
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