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<h1 class="articleH1">Letter I<br /> (1997-Present)</h1>
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<dl>
<dt><font face="helvetica" size="-1"><strong>ICD-9-CM, <em>see</em> <a href="#icd">International Classification of Diseases, 9th revision, Clinical Modification. </a> </strong></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Iconography of Contagion. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma10/ma10_hmd_reprint_contagion.html">2010 Mar-Apr:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Icons</strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Icons for Abstracts and Free Full Text.</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf03/jf03_icons.html"> 2003 Jan-Feb:e9</a>; <a href="/pubs/techbull/mj03/mj03_icon.html">2003 May-Jun: e6</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Library Icon Position. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma07/ma07_linkout.html">2007 Mar-Apr:e8</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>LinkOut Library Icons on Free Full Text Citations. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf05/jf05_fft.html">2005 Jan-Feb:e8</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Images Database.</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/so10/so10_pm_display_ncbi_images.html">2010 Sep-Oct:e14.</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Images From the History of Medicine. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/so99/so99_ihm.html"> 1999 Sep-Oct:e6</a>; <a href="/pubs/techbull/jf00/jf00_technote.html#hmd">2000 Jan-Feb:e3</a>; <a href="/pubs/techbull/ja09/ja09_hmd_images.html">2009 Jul-Aug:e8</a></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Added to LocatorPlus. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma08/ma08_ihm_locatorplus.html">2008 Mar-Apr:e5</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong><em>Imitators of Epilepsy</em>. 2nd ed. Added to Bookshelf. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/so05/so05_technote.html#6"> 2005 Sep-Oct:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Imperial Russian Era Holdings. </strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Added to NLM Catalog.</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd10/nd10_hmd_reprint_russia.html">2010 Nov-Dec:e15</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Imported (Chinese) Drywall. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/jf10/jf10_sis_reprint_enviro_health.html">2010 Jan-Feb:e17</a></font><br /><br
/></dt>
<dt><font face="helvetica" size="-1"><strong>InChI. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/mj07/mj07_technote.html#8">2007 May-Jun:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong><em>Index Medicus</em></strong></font><br /><br /> </dt>
<dd><font face="helvetica" size="-1"><strong>1997 Subject Section Split Changed. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf97/jf97_technote.html">1997 Jan-Feb:3</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>1999 Edition. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf99/jf99_technote.html">1999 Jan-Feb:e1</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>2004 Prices Announced. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd03/nd03_technote.html#im">2003 Nov-Dec:e1</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Ceases as a Printed Publication. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd04/nd04_technote.html#im">2004 Nov-Dec:e1</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>To Cease as Print Publication. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/mj04/mj04_im.html">2004 May-Jun:e2</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>"Number of Titles Currently Indexed" Web Page Updated. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/mj04/mj04_technote.html#titles">2004 May-Jun:e1</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>IndexCat (<em>Index-Catalogue of the Library of the Surgeon-General's Office</em>). </strong></font><font face="times" size="-1"><a href="/pubs/techbull/mj04/mj04_cat.html"> 2004 May-Jun:e8</a></font><br /><br /> </dt>
<dd><font face="helvetica" size="-1"><strong>My Documents.</strong></font><font face="times" size="-1"> <a href="/pubs/techbull/mj12/mj12_indexcat.html"> 2012 May-Jun:e5</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Thorndike and Kibre (eTK).</strong></font><font face="times" size="-1"> <a href="/pubs/techbull/mj12/mj12_indexcat.html"> 2012 May-Jun:e5</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Updated</strong></font><font face="times" size="-1"> <a href="/pubs/techbull/mj12/mj12_indexcat.html"> 2012 May-Jun:e5</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Voigts and Kurtz (eVK2).</strong></font><font face="times" size="-1"> <a href="/pubs/techbull/mj12/mj12_indexcat.html"> 2012 May-Jun:e5</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Indexing</strong></font><br /><br /> </dt>
<dd><font face="helvetica" size="-1"><strong>Events of September 11, 2001 and Bioterrorism for MEDLINE. </strong></font><font face="times" size="-1"> <a href="/pubs/techbull/nd01/nd01_indexing_bioterrorism.html"> 2001 Nov-Dec:e4</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Basics of MeSH Subject Heading. </strong></font><font face="times" size="-1"> <a href="//www.nlm.nih.gov/pubs/techbull/mj06/mj06_technote.html#2"> 2006 May-Jun:e1</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Gene. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/so02/so02_gene_indexing.html">2002 Sep-Oct:e6</a>; <a href="/pubs/techbull/ma03/ma03_technote.html#locuslink">2003 Mar-Apr:e1</a>; <a href="/pubs/techbull/nd03/nd03_technote.html#locuslink">2003 Nov-Dec:e1</a>; <a href="/pubs/techbull/jf04/jf04_technote.html#locuslink">2004 Jan-Feb:e1</a>; <a href="/pubs/techbull/ma05/ma05_gene.html">2005 Mar-Apr:e6</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Meeting Abstracts. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/so02/so02_automated_indexing.html">2002 Sep-Oct:e2</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Indexing Initiative. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/so02/so02_automated_indexing.html">2002 Sep-Oct:e2</a></font><br /><br /> </dt>
<dt><font face="helvetica" size="-1"><strong>Indexing Status Tag in PubMed. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma03/ma03_2003_pubmed_changes.html">2003 Mar-Apr:e14</a></font><br /><br /> </dt>
<dt><font face="helvetica" size="-1"><strong>Indoor Air Quality. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/ma05/ma05_technote.html#sis"> 2005 Mar-Apr:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong><em>Inflammatory Atherosclerosis: Characteristics of the Injurious Agent</em> Added. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/ma05/ma05_technote.html#books">2005 Mar-Apr:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Influenza. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd09/nd09_mesh.html">2009 Nov-Dec:e15</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Influenza A Viruses. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/nd05/nd05_bird_flu.html">2005 Nov-Dec:e10</a></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Swine-origin Influenza A (H1N1) Virus.</strong></font><font face="times" size="-1"><a href="/pubs/techbull/mj09/mj09_swine_flu.html">2009 May-Jun:e5</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><a name="influenza"><strong>Influenza Resources</strong></a></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong><a name="flu">Influenza Resources Available, NCBI</a>. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/jf07/jf07_technote.html#7">2007 Jan-Feb:e1</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Information Rx Tool Kit. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/mj06/mj06_info_rx.html">2006 May-Jun:e6</a>; <a href="/pubs/techbull/ma10/ma10_hmd_collections_db.html">2010 Mar-Apr:e5</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>InfoSIDA.</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/mj07/mj07_technote.html#1"> 2007 May-Jun:e1</a></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Web Site Redesigned.</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd11/nd11_reprint_aidsinfo.html"> 2011 Nov-Dec:e9</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Institute of Medicine. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf10/jf10_reprint_nlm_bookshelf.html">2010 Jan-Feb:e18</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Integrated Library System (ILS).</strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ja98/ja98_ils.html"> 1998 Jul-Aug:e2</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong><a name = "iris">Integrated Risk Information System (IRIS)</a> </strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Searchable in NLM Gateway. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/so05/so05_technote.html#11">2005 Sep-Oct:e1</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Interlibrary Loan</strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>DOCLINE ISO Support Discontinued. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/jf07/jf07_technote.html#12"> 2007 Jan-Feb:e1</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong><a name="icd">International Classification of Diseases, 9th revision, Clinical Modification (ICD-9-CM).</a> </strong></font><font face="times" size="-1"><a href="/pubs/techbull/nd09/nd09_snomed_reprint.html">2009 Nov-Dec:e7</a>;
<a href="/pubs/techbull/so11/so11_umls_news.html">2011 Sep-Oct:e2</a>;
<a href="/pubs/techbull/mj12/brief/mj12_umls_icd.html">2012 May-Jun:b3</a>
</font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>International Organization for Standardization (ISO) Abbreviations </strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Field Added to MEDLINE. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd09/nd09_medline_data_changes_2010.html">2009 Nov-Dec:e8</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>International Organization fo Standardization (ISO) ILL Protocol.</strong></font> <br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>DOCLINE is Compliant as of Version 2.6. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/nd05/nd05_docline.html"> 2005 Nov-Dec:e13</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>International Standard Randomised Controlled Trial Number (ISRCTN)</strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Added to MEDLINE&#174;/PubMed&#174; Data. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma06/ma06_isrctn.html"> 2006 Mar-Apr:e9</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>International Standard Serial Number (ISSN). </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd05/nd05_med_data_changes.html">2005 Nov-Dec:e7</a></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Electronic vs. Print. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/jf02/jf02_hybrid_journals.html"> 2002 Jan-Feb:e9</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Linking ISSN. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/nd09/nd09_medline_data_changes_2010.html">2009 Nov-Dec:e8</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong><a name="iter">International Toxicity Estimates for Risk (ITER)</a> </strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Available in TOXNET. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/ma04/ma04_technote.html#iter">2004 Mar-Apr:e1</a></font><br /><br /></dd>
<dd><font face="helvetica" size="-1"><strong>Searchable in NLM Gateway. </strong></font><font face="times" size="-1"><a href="/pubs/techbull/so05/so05_technote.html#11">2005 Sep-Oct:e1</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong><a name="iupac">International Union of Pure </a>and Applied Chemistry (IUPAC) "Glossary of Terms Used in Toxicology" Second Edition Added to the NLM Web Site. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ja07/ja07_technote.html#3"> 2007 Jul-Aug:e1</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong><a href="/pubs/techbull/tbindex/gm.html">Internet Grateful Med</a></strong></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Introduction to Health Services Research: A Self-Study Course. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ja08/ja08_hsr_self_study.html">2008 Jul-Aug:e10</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Investigator Affiliation Field (IRAD) Displays in MEDLINE format. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma03/ma03_2003_pubmed_changes.html">2003 Mar-Apr:e14</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>Investigator Field (IR). </strong></font><font face="times" size="-1"><a href="/pubs/techbull/ma08/ma08_collaborators.html">2008 Mar-Apr:e2</a></font><br /><br /> </dt>
<dd><font face="helvetica" size="-1"><strong>Changes for 2008. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd07/nd07_medline_data_changes2008.html">2007 Nov-Dec:e6</a></font><br /><br /> </dd>
<dd><font face="helvetica" size="-1"><strong>Displays in MEDLINE format. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma03/ma03_2003_pubmed_changes.html">2003 Mar-Apr:e14</a></font><br /><br /> </dd>
<dd><font face="helvetica" size="-1"><strong>In NLM Gateway. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd03/nd03_gateway.html">2003 Nov-Dec:e2</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>Ireland</strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Grant Numbers. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd03/nd03_gateway.html">2010 Sep-Oct:e2</a></font><br /><br /></dd>
<dt><font face="helvetica" size="-1"><strong>IRIS, <em>see</em> <a href="#iris">Integrated Risk Information System</a> </strong></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>ISO Abbreviations. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/ma07/ma07_title_abbrev.html"> 2007 Mar-Apr:e4</a></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>ISSNLinking </strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Field Added to MEDLINE. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/nd07/nd07_medline_data_changes2008.html">2007 Nov-Dec:e6</a></font><br /><br /> </dd>
<dt><font face="helvetica" size="-1"><strong>Italy</strong></font><br /><br /></dt>
<dd><font face="helvetica" size="-1"><strong>Grant Numbers. </strong></font> <font face="times" size="-1"><a href="/pubs/techbull/so10/so10_euro_grant_org.html">2010 Sep-Oct:e2.</a></font><br /><br /> </dd>
<dt><font face="helvetica" size="-1"><strong>ITER, <em>see</em> <a href="#iter">International Toxicity Estimates for Risk </a> </strong></font><br /><br /></dt>
<dt><font face="helvetica" size="-1"><strong>IUPAC, <em>see</em> <a href="#iupac">International Union of Pure and Applied Chemistry </a> </strong></font><br /><br /></dt>
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