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Impact Factor:

Just released – Journal Citation ReportsTM from Clarivate, 2021, Impact Factors for the AACR Journals:


Impact Factor

 Cancer Discovery 39.397
 Cancer Epidemiology, Biomarkers & Prevention 4.254
 Cancer Immunology Research 11.151
 Cancer Prevention Research 3.491
 Cancer Research 12.701
 Clinical Cancer Research 12.531
 Molecular Cancer Research 5.852
 Molecular Cancer Therapeutics 6.261
*Blood Cancer Discovery, the latest AACR Journal, has not published long enough to have received an Impact Factor.

Five-Year Impact Factor:

While the standard Impact Factor measures citations to journal articles published within a 2-year period, the 5-year Impact Factor evaluates citations to journal articles published within a 5-year period to provide a measure of a journal's longer-term influence.


Impact Factor

 Cancer Discovery 39.115
 Cancer Epidemiology, Biomarkers & Prevention 5.730
 Cancer Immunology Research 12.515
 Cancer Prevention Research 4.543
 Cancer Research 12.843
 Clinical Cancer Research 12.836
 Molecular Cancer Research 6.107
 Molecular Cancer Therapeutics 7.019


The Eigenfactor uses methods from network theory to rank the influence of journals, much as Google's PageRank algorithm ranks the influence of web pages, by identifying journals as influential if they are cited often by other influential journals.



 Cancer Discovery 0.07246
 Cancer Epidemiology, Biomarkers & Prevention* 0.02191
 Cancer Immunology Research 0.02729
 Cancer Prevention Research 0.00552
 Cancer Research 0.10515
 Clinical Cancer Research 0.13104
 Molecular Cancer Research 0.01325
 Molecular Cancer Therapeutics 0.02400

Immediacy Index:

An Immediacy Index is a measure of how topical and urgent work published in a scientific journal is. The Immediacy Index is calculated by dividing the number of citations to articles published in a given year by the number of articles published in that year.


Immediacy Index

 Cancer Discovery 14.874
 Cancer Epidemiology, Biomarkers & Prevention* 1.016
 Cancer Immunology Research 3.264
 Cancer Prevention Research 0.981
 Cancer Research 2.731
 Clinical Cancer Research 3.551
 Molecular Cancer Research 1.890
 Molecular Cancer Therapeutics 1.838
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