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In the summer of 2017, we began the process of converting portions of the HemOnc.org website content into a formal OWL ontology, along with some additional external information such as RxNorm identifiers. As of the latest release (2018-10-29), the ontology contains information on:

  • Diseases: names, classifications
  • Interventions, in four major classes:
    • Biologic products: factor replacement, cellular therapy, etc.
    • Devices
    • Drugs: names, synonyms, classifications, RxCUI (when available), sigs (new)
    • Radiation
  • Regimens: names, synonyms, classifications, components, references
  • References: title, journal, year of publication, classifications, number of authors, authors
  • Authors: name

Please note: this ontology is still in beta! For a much more detailed explanation, you can download the latest release notes here: File:Release notes 2018-10-29.docx.


The ontology is freely available for academic or non-commercial use, upon request. We are also willing to discuss commercial uses on a case-by-case basis. Please let us know of your interest by sending an email to contact@hemonc.org.

Academic and Non-Commcercial License

The HemOnc.org ontology is licensed by version under the CreativeCommons NonCommercial-ShareAlike 4.0 International License for academic and non-commercial users. Under this license, users are free to:

  • Share — copy and redistribute the material in any medium or format
  • Adapt — remix, transform, and build upon the material

Under the following terms:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

References and acknowledgements

  1. Malty AM, Jain SK, Yang PC, Harvey K, Warner JL. Computerized approach to creating a systematic ontology of hematology/oncology regimens. JCO Clinical Cancer Informatics. 2018 May 11. link to original article link to PMC article PubMed
  2. This work is currently supported in part by National Institutes of Health (NIH) Grants No. U24 CA184407, U24 CA194215, and U01 CA231840. Previously, this work was supported by NIH Grant No. L30 CA171123. This work was conducted using the Protégé resource, which is supported by Grant No. GM10331601 from the NIH National Institute of General Medical Sciences.