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BMJ joins campaign to put “science into assessment of research,” as its impact factor rises

BMJ 2013; 347 doi: (Published 03 July 2013) Cite this as: BMJ 2013;347:f4327
  1. Susan Mayor
  1. 1London

The BMJ’s impact factor has risen from 14 in 2011 to 17 in 2012, placing it fourth among the world’s top general medical journals and first among open access, general medical journals, latest figures show.

The impact factor is a measure of the average number of citations to articles that a journal has recently published. The 2012 impact factor was calculated from the number of times articles published in a journal during 2010 and 2011 were cited by articles in other indexed journals during 2012. This figure was divided by the total number of “citable items” (mainly research and clinical review articles) published in 2010-11.

The BMJ’s …

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