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. 2009 Sep 3;10:411. doi: 10.1186/1471-2164-10-411

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Copyright © 2009 Feng et al; licensee BioMed Central Ltd.

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 is properly cited.

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The distribution of the ratio of the query's MeSH terms in the top-ranked entries for 100 randomly selected queries. The groups in different color are the top 50 entries without a P-value filter, top 50 entries with a P-value <= 0.01, top 30 entries without a P-value filter, top 30 entries with a P-value <= 0.01, top 10 entries without a P-value filter, top 10 entries with a P-value <= 0.01, and total entries, respectively. The total entries represent all human species microarray series (corresponding to 444 series).