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<title>ASCII MeSH Data Elements for Supplementary Concept Records</title>
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<div class="h1">ASCII MeSH Data Elements for Supplementary Concept Records</div>
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<p>Supplementary Concept Records in ASCII MeSH contain the data elements listed below, though not every record will have a value for every data element. The list includes all the elements in ELHILL file MeSH for this record type. Note that not every record has every data element. <a href="/mesh/asc_smpc.txt">Sample record.</a></p>
<table class="table table-bordered border-dark">
<thead>
<tr>
<th>Data Element</th>
<th>Name</th>
</tr>
</thead>
<tbody>
<tr>
<td>DA</td>
<td>DATE OF ENTRY</td>
</tr>
<tr>
<td>FR</td>
<td>FREQUENCY</td>
</tr>
<tr>
<td>HM</td>
<td>HEADING MAPPED-TO</td>
</tr>
<tr>
<td>II</td>
<td>INDEXING INFORMATION</td>
</tr>
<tr>
<td>MR</td>
<td>MAJOR REVISION DATE</td>
</tr>
<tr>
<td>N1</td>
<td>CAS TYPE 1 NAME</td>
</tr>
<tr>
<td>NM</td>
<td>NAME OF SUBSTANCE</td>
</tr>
<tr>
<td>NM_TH&nbsp;</td>
<td>NM TERM THESAURUS ID</td>
</tr>
<tr>
<td>NO</td>
<td>NOTE</td>
</tr>
<tr>
<td>PA</td>
<td>PHARMACOLOGICAL ACTION</td>
</tr>
<tr>
<td>PI</td>
<td>PREVIOUS INDEXING</td>
</tr>
<tr>
<td>RECTYPE</td>
<td>RECORD TYPE [= RY in ELHILL MESH]</td>
</tr>
<tr>
<td>RN</td>
<td>CAS REGISTRY/EC NUMBER/UNII CODE</td>
</tr>
<tr>
<td>RR</td>
<td>RELATED REGISTRY NUMBER</td>
</tr>
<tr>
<td>SO</td>
<td>SOURCE</td>
</tr>
<tr>
<td>ST</td>
<td>SEMANTIC TYPE</td>
</tr>
<tr>
<td>SY</td>
<td>SYNONYM **</td>
</tr>
<tr>
<td>TH</td>
<td>THESAURUS ID</td>
</tr>
<tr>
<td>UI</td>
<td>UNIQUE IDENTIFIER</td>
</tr>
</tbody>
</table>
<p>** An SY term may have several subfields, with each subfield entry separated from another by a vertical bar. A final string "map" indicates which value goes with which subfield. For example,</p>
<pre>SY = Proflox|T109|T121|TRD|NRW|ES Spanish Trade Name|041021|abbcdef
</pre>
<table class="table table-bordered border-dark">
<tbody>
<tr>
<td>a</td>
<td>the term itself</td>
</tr>
<tr>
<td>b</td>
<td>SEMANTIC TYPE</td>
</tr>
<tr>
<td>c</td>
<td>LEXICAL TYPE</td>
</tr>
<tr>
<td>d</td>
<td>SEMANTIC RELATION</td>
</tr>
<tr>
<td>e</td>
<td>THESAURUS ID</td>
</tr>
<tr>
<td>f</td>
<td>DATE</td>
</tr>
</tbody>
</table>
<p>These subfields above apply only to SY terms. For NM terms the THESAURUS ID and SEMANTIC TYPE values may also be available, but these will be displayed as regular inline elements, rather than as sub-elements, just as in the case of Descriptors. Example:</p>
<pre>NM = ciclesonide
NM_TH = USAN (1998)
ST = T110 </pre>
<p>For additional information on these data elements see the <a href="/mesh/xml_data_elements.html">XML MeSH Data Elements</a> and the corresponding ASCII MeSH element in the XML MeSH <a href="/mesh/xmlconvert.html">Conversion Table</a>. Note, however, that when an SY term has SEMANTIC RELATION value of 'EQV', this means that the term is equivalent to the NM in the sense that it shares the same Concept.</p>
<p class=”margin-top-5”><small>Last Reviewed: April 3, 2018</small></p>
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