get_refs {citationchaser}

Automated citation chasing in systematic reviews

Description

This function takes a list of articles in the form of established identifiers (e.g. digital object identifiers) and sends a request to the lens.org API to firstly identify all cited references in all articles (in the form of lists of lens IDs), and then query these lens IDs to bring back full citation information for all listed records. Deduplicates references to the same records across articles, resulting in an RIS file and a summary report in the console.

Usage

get_refs(article_list, type = "doi", get_records, save_object = FALSE, token)

Arguments

article_list

List of article identifiers for which the reference lists will be returned. Must be a list/vector of identifiers, e.g. '"10.1186/s13750-018-0126-2" "10.1002/jrsm.1378"'.

type

Specification of the type of input provided. The default is 'doi' (digital object identifier), but any of the following are accepted: "pmid" (PubMed ID), "pmcid" (PubMed Central ID), "magid" (Microsoft Academic ID), "coreid" (CORE identifier), lens_id" (The Lens.org ID), "title" (article title; much lower specificity).

get_records

Specification of whether to look for records referenced within the input articles ('references'), records citing the input articles ('citations'), or both ('both').

save_object

Option to save the resultant ris file as an object in the Global Environment. The default is FALSE.

token

An access key for the lens.org API. Tokens can be obtained by applying for scholarly API access and creating a token once approved. See 'https://www.lens.org/lens/user/subscriptions#scholar' for further details.

Value

An RIS file is saved to the working directory. A report is printed to the console. If 'save_object=TRUE', the RIS file is returned as an object

Examples

## Not run: 
article_list <- c("10.1007/978-3-642-37048-9_13", 
                  "10.1111/sum.12030", 
                  "10.5194/bg-13-3619-2016", 
                  "10.1016/j.agee.2012.09.006")
  token <- 'token'
  refs <- get_refs(article_list, get_records = 'references', token = token)
  refs
  
## End(Not run)