Zotero plugin: find open-access full-text PDFs (Unpaywall, PubMed Central), check references for retractions (PubMed + Crossref/Retraction Watch), and check citation metadata against Crossref. From the Vahtian tool family.
citations open-access pubmed-central full-text zotero literature-review retractions citation-metadata unpaywall systematic-review zotero-plugin research-tools retraction-watch
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Updated
Jul 30, 2026 - JavaScript