Get citations for a given publication

Finds works that cite a given publication.

Usage

epmc_citations(ext_id = NULL, data_src = "med", limit = 100, verbose = TRUE)

ext_id

character, publication identifier

data_src

character, data source, by default Pubmed/MedLine index will be searched.

The following three letter codes represent the sources Europe PubMed Central supports:

agr: Agricola is a bibliographic database of citations to the agricultural literature created by the US National Agricultural Library and its co-operators.
cba: Chinese Biological Abstracts
ctx: CiteXplore
eth: EthOs Theses, i.e. PhD theses (British Library)
hir: NHS Evidence
med: PubMed/Medline NLM
nbk: Europe PMC Book metadata
pat: Biological Patents
pmc: PubMed Central

limit

integer, number of results. By default, this function returns 100 records.

verbose

logical, print some information on what is going on.

Metadata of citing documents as data.frame

if (FALSE) { # \dontrun{
epmc_citations("PMC3166943", data_src = "pmc")
epmc_citations("9338777")
} # }