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PTC includes the full-text articles in the PMC Open Access subset (~3 million) in addition to the ~30 million abstracts in PubMed [4].
Cutting-edge machine learning and deep learning techniques are applied to concept disambiguation for improved accuracy.
PubTator Central data is free and can be accessed interactively through a web browser, programmatically via RESTful API, or downloaded in bulk via FTP.
PTC adds new articles every day to always keep in sync with PubMed and PMC.