The literature citation database
at the National Center for Biotechnology Information is called PubMed. NCBI’s Entrez Search and Retrieval System is a
program that allows a user to search and retrieve information from NCBI’s
numerous databases. The PubMed database can be easily searched with Entrez by a
simple keyword search. Full articles are not provided in this database, only
citations and abstracts are available to view.
Instructions:
1. In
the NCBI Homepage, click on link to PubMed.
(This
will take you to NCBI’s Entrez Search and Retrieval System which specifically
searches the PubMed literature citation data at the National Center for
Biotechnology Information.)
2. In SEARCH BOX type a keyword, phrase, name of the gene, an accession number, or a gi number as search fields.
3. Click on “Go” button.
(The Entrez program will search
the PubMed database for the search fields you entered.)
4. The
program will provide a list of the search results.
(To narrow your search: Use Boolean
operators to link keywords (AND, OR, NOT) or use the “Limits” command to select
limits to the search.
The
History command is also useful with Boolean operators to link previous
searches.
Intersection
(AND) - only those citations that contain selected terms.
Union (OR)
- citations that contain at least one of the selected terms.
Difference
(NOT) - exclude citations with the selected term.
Note: Boolean operators must be typed in all capital
letters.
5. To view the information: Click on link to the journal citation you wish to view.
(Only abstracts are provided to
the user.)
If you need more assistance,
please refer to NCBI's PubMed Help
Or the Entrez Tutorial Provided by NCBI. Entrez-Nucleotide Tutorial
When you are ready, click
here to start.
NCBI's PubMed-Entrez Search
Engine
We suggest trying another
great site: Web of Science