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    <front>
        <journal-meta>
            <journal-id journal-id-type="publisher-id">JMIR</journal-id>
            <journal-id journal-id-type="nlm-ta">J Med Internet Res</journal-id>
            <journal-title>Journal of Medical Internet Research</journal-title>
            <issn pub-type="epub">1438-8871</issn>
            <publisher>
                <publisher-name>Gunther Eysenbach</publisher-name>
                <publisher-loc>JMIR Publications Inc., Toronto, Canada</publisher-loc>
            </publisher>
        </journal-meta>
        <article-meta>
            <article-id pub-id-type="publisher-id">v14i4e108</article-id>
            <article-id pub-id-type="pmid">22864147</article-id>
            <article-id pub-id-type="doi">10.2196/jmir.2232</article-id>
            <article-categories>
                <subj-group subj-group-type="article-type">
                    <subject>Corrigenda and Addenda</subject>
                </subj-group>
            </article-categories>
            <title-group>
                <article-title>Correction: Development and Validation of Filters for the Retrieval of Studies of Clinical Examination From Medline</article-title>
            </title-group>
            <contrib-group>
                <contrib contrib-type="editor">
                    <name>
                        <surname>Eysenbach</surname>
                        <given-names>Gunther</given-names>
                    </name>
                </contrib>
            </contrib-group>
            <contrib-group>
                <contrib contrib-type="author" id="contrib1" corresp="yes">
                    <name name-style="western">
                        <surname>Badgett</surname>
                        <given-names>Robert</given-names>
                    </name>
                    <degrees>MD</degrees>
                    <xref ref-type="aff" rid="aff1">1</xref>
                    <address>
                        <institution>University of Kansas School of Medicine at Wichita</institution>
                        <institution>Department of Internal Medicine and Department of Preventive Medicine and Public Health</institution>
                        <addr-line>1010 N Kansas</addr-line>
                        <addr-line>Wichita, KS, 67214-3199</addr-line>
                        <country>United States</country>
                        <phone>1 316 293 2604</phone>
                        <fax>1 316 293 1878</fax>
                        <email>rbadgett@kumc.edu</email>
                    </address>
                </contrib>
                <contrib contrib-type="author" id="contrib2">
                    <name name-style="western">
                        <surname>Shaikh</surname>
                        <given-names>Nader</given-names>
                    </name>
                    <degrees>MD, MPH</degrees>
                    <xref ref-type="aff" rid="aff2">2</xref>
                </contrib>
                <contrib contrib-type="author" id="contrib3">
                    <name name-style="western">
                        <surname>Pi</surname>
                        <given-names>Mini</given-names>
                    </name>
                    <xref ref-type="aff" rid="aff3">3</xref>
                </contrib>
                <contrib contrib-type="author" id="contrib4">
                    <name name-style="western">
                        <surname>Wilczynski</surname>
                        <given-names>Nancy L</given-names>
                    </name>
                    <degrees>PhD</degrees>
                    <xref ref-type="aff" rid="aff4">4</xref>
                </contrib>
                <contrib contrib-type="author" id="contrib5">
                    <name name-style="western">
                        <surname>McKibbon</surname>
                        <given-names>K. Ann</given-names>
                    </name>
                    <degrees>PhD</degrees>
                    <xref ref-type="aff" rid="aff4">4</xref>
                </contrib>
                <contrib contrib-type="author" id="contrib6">
                    <name name-style="western">
                        <surname>Ketchum</surname>
                        <given-names>Andrea M</given-names>
                    </name>
                    <degrees>MLIS</degrees>
                    <xref ref-type="aff" rid="aff5">5</xref>
                </contrib>
                <contrib contrib-type="author" id="contrib7">
                    <name name-style="western">
                        <surname>Haynes</surname>
                        <given-names>R. Brian</given-names>
                    </name>
                    <degrees>MD, PhD</degrees>
                    <xref ref-type="aff" rid="aff4">4</xref>
                </contrib>
            </contrib-group>
            <aff id="aff1" rid="aff1">
                <sup>1</sup>
                <institution>University of Kansas School of Medicine at Wichita</institution>
                <institution>Department of Internal Medicine and Department of Preventive Medicine and Public Health</institution>
                <addr-line>Wichita, KS</addr-line>
                <country>United States</country>
            </aff>
            <aff id="aff2" rid="aff2">
                <sup>2</sup>
                <institution>Children&#8217;s Hospital of Pittsburgh of UPMC</institution>
                <institution>General Academic Pediatrics</institution>
                <institution>UPMC</institution>
                <addr-line>Pittsburgh, PA</addr-line>
                <country>United States</country>
            </aff>
            <aff id="aff3" rid="aff3">
                <sup>3</sup>
                <institution>Carnegie Mellon University</institution>
                <institution>Department of Biology</institution>
                <addr-line>Pittsburgh, PA</addr-line>
                <country>United States</country>
            </aff>
            <aff id="aff4" rid="aff4">
                <sup>4</sup>
                <institution>McMaster University</institution>
                <institution>Department of Clinical Epidemiology and Biostatistics</institution>
                <addr-line>Hamilton, ON</addr-line>
                <country>Canada</country>
            </aff>
            <aff id="aff5" rid="aff5">
                <sup>5</sup>
                <institution>University of Pittsburgh</institution>
                <institution>Health Sciences Library System</institution>
                <addr-line>Pittsburgh, PA</addr-line>
                <country>United States</country>
            </aff>
            <pub-date pub-type="collection">
                <season>Jul-Aug</season>
                <year>2012</year>
            </pub-date>
            <pub-date pub-type="epub">
                <day>03</day>
                <month>08</month>
                <year>2012</year>
            </pub-date>
            <volume>14</volume>
            <issue>4</issue>
            <elocation-id>e108</elocation-id>
            <!--history from ojs - api-xml-->
            <history>
                <date date-type="received">
                    <day>27</day>
                    <month>07</month>
                    <year>2012</year>
                </date>
                <date date-type="rev-request">
                    <day>27</day>
                    <month>07</month>
                    <year>2012</year>
                </date>
                <date date-type="rev-recd">
                    <day>27</day>
                    <month>07</month>
                    <year>2012</year>
                </date>
                <date date-type="accepted">
                    <day>27</day>
                    <month>07</month>
                    <year>2012</year>
                </date>
            </history>
            <!--(c) the authors - correct author names and publication date here if necessary. Date in form ', dd.mm.yyyy' after jmir.org-->
            <copyright-statement>&#169;Robert Badgett, Nader Shaikh, Mini Pi, Nancy L Wilczynski, K. Ann McKibbon, Andrea M. Ketchum, R. Brian Haynes. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 03.08.2012. </copyright-statement>
            <copyright-year>2012</copyright-year>
            <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0/">
                <p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.</p>
            </license>
            <self-uri xlink:href="http://www.jmir.org/2012/4/e108/" xlink:type="simple" />
            <related-article related-article-type="corrected-article" xlink:title="Correction of:" xlink:href="http://www.jmir.org/2011/4/e82/" vol="13" page="e82" />
            <kwd-group>
                <kwd>information retrieval</kwd>
                <kwd>MEDLINE</kwd>
            </kwd-group>
        </article-meta>
    </front>
    <body>
        <p>The authors of the recent JMIR publication &#8220;Development and Validation of Filters for the Retrieval of Studies of Clinical Examination From Medline&#8221; (J Med Internet Res 2011;13(4):e82) [<xref ref-type="bibr" rid="ref1">1</xref>] inadvertently misplaced a decimal point in the final row of Table 4 (Comparison of the performance of filters for clinical examination, diagnosis, and treatment). The precision of the original report of the Haynes 1994 filter should be 22% and not 0.22. This leads to the F-measure being 36 and the NNR being 4.5. In addition, the following line in the discussion is incorrect and has been removed: &#8220;In addition, our results are consistent with Haynes initial reports of locating trials in the early 1990s (19) before the National Library of Medicine collaborated with the Cochrane Collaboration and introduced 'randomized controlled trial' as a MeSH term (final row of Table 4)&#8221;.</p>
        <p>The data in Table 4 was compiled to support our recommendation that the National Library of Medicine should create a publication type for &#8220;diagnostic accuracy study&#8221; to label studies that quantify sensitivity and specificity for diagnosis. We regret the error, but do not believe it weakens our recommendation or alters the results of our study.</p>
        <p>The precision of the Haynes 1994 treatment filter was surprisingly high in their study and is due in part to the development and validation being limited to 10 high-impact journals [<xref ref-type="bibr" rid="ref2">2</xref>]. Our study used 161 journals.</p>
        <p>The online version of the JMIR paper has been corrected together with publication of this correction notice. A corrected version has been submitted by the publisher to PubMed Central, but incorrect versions may persist on other sites.</p>
    </body>
    <back>
        <ref-list>
            <ref id="ref1">
                <label>1</label>
                <nlm-citation citation-type="journal">
                    <person-group person-group-type="author">
                        <name name-style="western">
                            <surname>Shaikh</surname>
                            <given-names>N</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Badgett</surname>
                            <given-names>RG</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Pi</surname>
                            <given-names>M</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Wilczynski</surname>
                            <given-names>NL</given-names>
                        </name>
                        <name name-style="western">
                            <surname>McKibbon</surname>
                            <given-names>KA</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Ketchum</surname>
                            <given-names>AM</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Haynes</surname>
                            <given-names>RB</given-names>
                        </name>
                    </person-group>
                    <article-title>Development and validation of filters for the retrieval of studies of clinical examination from Medline</article-title>
                    <source>J Med Internet Res</source>
                    <year>2011</year>
                    <volume>13</volume>
                    <issue>4</issue>
                    <fpage>e82</fpage>
                    <comment>
                        <ext-link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="http://www.jmir.org/2011/4/e82/" />
                    </comment>
                    <pub-id pub-id-type="doi">10.2196/jmir.1826</pub-id>
                    <pub-id pub-id-type="medline">22011384</pub-id>
                    <pub-id pub-id-type="pii">v13i4e82</pub-id>
                    <pub-id pub-id-type="pmcid">PMC3222198</pub-id>
                </nlm-citation>
            </ref>
            <ref id="ref2">
                <label>2</label>
                <nlm-citation citation-type="journal">
                    <person-group person-group-type="author">
                        <name name-style="western">
                            <surname>Haynes</surname>
                            <given-names>RB</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Wilczynski</surname>
                            <given-names>N</given-names>
                        </name>
                        <name name-style="western">
                            <surname>McKibbon</surname>
                            <given-names>KA</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Walker</surname>
                            <given-names>CJ</given-names>
                        </name>
                        <name name-style="western">
                            <surname>Sinclair</surname>
                            <given-names>JC</given-names>
                        </name>
                    </person-group>
                    <article-title>Developing optimal search strategies for detecting clinically sound studies in MEDLINE</article-title>
                    <source>J Am Med Inform Assoc</source>
                    <year>1994</year>
                    <month>12</month>
                    <volume>1</volume>
                    <issue>6</issue>
                    <fpage>447</fpage>
                    <lpage>58</lpage>
                    <comment>
                        <ext-link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="http://jamia.bmj.com/cgi/pmidlookup?view=long&#38;pmid=7850570" />
                    </comment>
                    <pub-id pub-id-type="medline">7850570</pub-id>
                    <pub-id pub-id-type="pmcid">PMC116228</pub-id>
                </nlm-citation>
            </ref>
        </ref-list>
    </back>
</article>
