E utilities of NCBI

[Virtual Post Bioclues]

E-utilities, the API to the NCBI Entrez system, now offers two new options for data retrieval: the &sort parameter and JSON format.

First, ESearch now offers a fully supported &sort parameter that determines the sort order of the UIDs returned. While each Entrez database has a default sort order, each also provides a variety of other sorting options found in the "Display Settings" menu at the top of a search result page. Any of these options may now be given to ESearch using &sort.

Second, the output for EInfo, ESearch and ESummary are now available in the popular JSON format.

Please see the news story and the E-utilities documentation for additional details.

* News story: http://www.ncbi.nlm.nih.gov/news/03-10-2014-eutils-sorting/
* E-utilities documentation: eutils.ncbi.nlm.nih.gov
* JSON format introduction: http://json.gov


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