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Results of the last query are displayed including all applied filters.
By clicking on back to initial query you can remove all filters at once, with step back you remove the filters one by one.
By clicking on a particular filter you can remove it from query.
If you want to include the query to the search history (is a part of Advanced search), use use results.
By clicking on any item of the menu below you can refine your query. If you want to select more items from one category, click on filter.
By clicking on any item of the menu below you can limit your query by Document type.
If you want to select more items, click on filter.
A cloud of MeSH headings is derived from frequency of headings’ occurence in the database or in the set of retrieved records.
The size of characters of the headings depends on frequency of use of a particular heading in the set of indexed records.
By clicking on any of these headings you get records that contain the selected MeSH heading.
If you already have some records, by clicking on a heading you limit/specify your query to the records that contain the selected heading.