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Rockefeller University Press journals are signatories of the DORA declaration and we use several metrics that provide an overview of their performance. Readers can find Altmetric data and usage statistics within each article.

Journal of Experimental Medicine (JEM) publishes papers providing novel conceptual insight into immunology, neuroscience, cancer biology, vascular biology, microbial pathogenesis, and stem cell biology. Est. 1896

  • Impact Factor (IF)Impact Factor: The average number of citations in a given year per paper published in the journal over the previous 2 years. Different subject areas exhibit different ranges of IF. Journals are best viewed in the context of their specific field.
    : 11.743
  • 5-Year IF5-Year IF: Offers a smoother variation and may be more appropriate in a field where the number of citations is small or where it takes longer than 2 years to disseminate and respond to published works.
    : 11.984
  • IF rank in Medicine, Research and Experimental among primary research journals: 5
  • IF rank in Immunology among primary research journals: 9
  • Cited Half-lifeCited Half-life: A measure of how long content is referred to after publication. The number of years, going back from the current year, that account for half the total citations received by the journal in the current year.
    : 13.5
  • Eigenfactor (EF) ScoreEigenfactor: A measure of the journal’s influence within the network of academic citations with a 5- year target window based on Thomson ISI data. Considers the origins of the incoming journal citations to articles in that journal. Citations from highly ranked journals are weighted to make a larger contribution to the Eigenfactor score.
    : 0.06735
  • Article Influence (AI) ScoreArticle Influence: As for the Eigenfactor score, measures influence but on an average per-article basis. The mean Article Influence score is 1.00. A score greater than 1.00 indicates that the articles in a journal have an above average influence.
    : 5.557
  • Scimago Journal and Country Rank (SJR)SJR: As for the Eigenfactor score, ranks journals by their 'average prestige per article'. Based on the SCOPUS database.
    : 7.76
  • Source Normalized Impact per Paper (SNIP)SNIP: Measures a source’s contextual citation impact by weighting citations based on the total number of citations in a subject field. It helps you make a direct comparison of sources in different subject fields.
    : 2.22
  • Immediacy IndexImmediacy Index: The average number of times that an article is cited in the same year it is published.
    : 3.264
  • Subject Categories Ranking,
     ESI Total CitationsESI: An analytical tool that helps you identify top-performing research in Web of Science Core Collection. ESI surveys more than 11,000 journals from around the world to rank authors, institutions, countries, and journals in 22 broad fields based on publication and citation performance. Data covers a rolling 10-year period and includes bimonthly updates to rankings and citation counts.
    : 3/168 Immunology
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