2.4(top 20%)
impact factor
229.0K(top 0.1%)
papers
3.2M(top 0.1%)
citations
532(top 0.1%)
h-index
2.7(top 20%)
impact factor
413.6K
all documents
3.4M
doc citations
971(top 0.1%)
g-index
impact-factor
The graph shows the changes in the impact factor of BMJ: British Medical Journal and its corresponding percentile for the sake of comparison with the entire literature. Impact Factor is the most common scientometric index, which is defined by the number of citations of papers in two preceding years divided by the number of papers published in those years.