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  1. One of the most widely used interfaces for the retrieval of information from biological databases is the NCBI Entrez system. Entrez capitalizes on the fact that there are pre-existing, logical relationships between the individual entries found in numerous public databases.

  2. pubmed.ncbi.nlm.nih.govPubMed

    Search. Advanced. PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

  3. pubmed.ncbi.nlm.nih.gov › helpHelp - PubMed

    21 mai 2024 · To create a proximity search in PubMed, enter your terms using the following format: "search terms"[field:~N] Search terms = Two or more words enclosed in double quotes.

  4. 29 mai 2009 · Examples. Search in PubMed with the term cancer for abstracts that have an Entrez date within the last 60 days; retrieve the first 100 PMIDs and translations; post the results on the History server and return a WebEnv and query_key:

  5. 20 ian. 2006 · Simple examples are definite and indefinite articles, conjunctions, and prepositions. A complete list of Entrez (PubMed) stopwords is given in the PubMed Guide. Punctuation in search terms is also typically ignored by Entrez and can cause certain strings to be missed. Enclosing problematic terms in quotes can help.

  6. Sample PubMed Search #1. Source publication. +6. PubMed® Search Interface Alternatives: A Descriptive Comparison. Article. Full-text available. Jun 2010. Elizabeth Connor. The Entrez...

  7. 13 feb. 2024 · A comprehensive and systematic search of PubMed includes both controlled vocabulary and keyword terms (i.e. free text, natural language, and synonyms). Boolean operators are used to combine search terms. In PubMed, you can use the operators AND, OR, and NOT. Go to the “Advanced Search” page to combine searches. This is where your search ...

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