Perform Forward and Backwards Chasing in Evidence Syntheses R package citationchaser version 0.0.4 CRAN Task View: MetaAnalysis (https://CRAN.R-project.org/view=MetaAnalysis) In searching for research articles, we often want to obtain lists of references from across studies, and also obtain lists of articles that cite a particular study. In systematic reviews, this supplementary search technique is known as 'citation chasing': forward citation chasing looks for all records citing one or more articles of known relevance; backward citation chasing looks for all records referenced in one or more articles. Traditionally, this process would be done manually, and the resulting records would need to be checked one-by-one against included studies in a review to identify potentially relevant records that should be included in a review. This package contains functions to automate this process by making use of the Lens.org API. An input article list can be used to return a list of all referenced records, and/or all citing records in the Lens.org database (consisting of PubMed, PubMed Central, CrossRef, Microsoft Academic Graph and CORE; <https://www.lens.org>). Software Depends: R (>= 2.10) Imports: dplyr, httr, jsonlite, maditr, MESS, networkD3, scales, tibble, utils, data.table Suggests: knitr, rmarkdown Neal Haddaway <nealhaddaway@gmail.com> Comprehensive R Archive Network (CRAN) Neal Haddaway [aut, cre] (ORCID: <https://orcid.org/0000-0003-3902-2234>), Matthew Grainger [ctb], Charles Gray [ctb] GPL (>= 3) 2022-01-27 application/tgz https://CRAN.R-project.org/package=citationchaser doi:10.32614/CRAN.package.citationchaser