Impact factor - Wikipedia
https://en.wikipedia.org/wiki/Impact_factorThe impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.As a journal-level metric, it is frequently used as a proxy for the relative importance of a journal …
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Journal Impact Factors - Annual Reviews
www.annualreviews.org › about › impact-factorsThe 2021 Edition of the Journal Citation Reports® (JCR) published by Clarivate Analytics provides a combination of impact and influence metrics from 2020 Web of Science source data. This measure provides a ratio of citations to a journal in a given year to the citable items in the prior two years. Download Annual Reviews 2021 Edition JCR Rankings in Excel format.
Journal Impact Factor
impactfactorforjournal.comFull Journal Title: Journal Impact Factor: 1: CA-A CANCER JOURNAL FOR CLINICIANS: 508.702: 2: NATURE REVIEWS MOLECULAR CELL BIOLOGY: 94.444: 3: NEW ENGLAND JOURNAL OF MEDICINE: 91.245: 4: NATURE REVIEWS DRUG DISCOVERY: 84.694: 5: LANCET: 79.321: 6: Nature Reviews Clinical Oncology: 66.675: 7: Nature Reviews Materials: 66.308: 8: Nature Energy: 60.858: 9: NATURE REVIEWS CANCER: 60.716: 10