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Suggested citation
Thornton ML, (ed). Standards for Cancer Registries Volume II: Data Standards and Data Dictionary, Version 21, 22nd ed. Springfield, Ill.: North American Association of Central Cancer Registries, August 2020, revised Sept. 2020, Oct. 2020, Nov. 2020, May 2021.
Acknowledgment
We are very grateful to the members of NAACCR's Uniform Data Standards Work Group for their dedication and the many hours contributed to prepare this document.
Funding for this project was made possible in part by a contract with Federal funds from the National Cancer Institute, National Institutes of Health, Department of Health & Human Services under Contract number HHSN261201400004I / HHSN26100002. Additionally, funding for this project was made possible in part by a cooperative agreement with Federal funds from the Centers for Disease Control and Prevention Cooperative Agreement number 5NU58DP006458. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the NCI and CDC. The NAACCR Board of Directors adopted these standards in August 2020.