pubmedR (version 1.0.2)

pmReferences: Find references cited by a given PubMed article

Description

It retrieves the PMIDs of articles that are cited by (referenced in) a given PubMed article, using the NCBI E-Link service.

Usage

pmReferences(pmid, api_key = NULL)

Value

a list containing:

pmid		The queried PMID.
references		A character vector of PMIDs referenced by the queried article.
count		The number of references found.

Arguments

pmid

is a character or numeric. A single PubMed identifier (PMID).

api_key

is a character. It contains a valid API key for the NCBI E-utilities. Default is api_key=NULL. The API key can also be set via the environment variable PUBMED_API_KEY or ENTREZ_KEY.

Details

This function uses the NCBI E-Link endpoint with linkname "pubmed_pubmed_refs" to find articles in PubMed that are referenced by the given article.

Note: Reference data is extracted from PubMed Central (PMC) full-text articles and is only available when the full text is deposited in PMC. Not all PubMed articles have reference data available.

See Also

pmCitedBy

pmFetchById

Examples

# \donttest{
# Find references of PMID 25824007
refs <- pmReferences(pmid = "25824007")
refs$count
refs$references
# }