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BMJ: British Medical Journal
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BMJ: British Medical Journal
(top 60%)
Impact Factor
(top 60%)
extended IF
346
(top 1%)
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21.2K
papers
780.8K
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citing authors
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How are inpact factors calculated?
The impact factor (IF) is calculated by counting citations from peer-reviewed journals only.
extended IF
also counts citations from books and conference papers. However, no patent, abstract, working papers, online documents, etc., are covered.
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