| 11. | The journal usually has the highest impact factor of the journals of internal medicine.
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| 12. | The impact factor of Chinese scientific journals is relatively low.
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| 13. | Its 2012 Impact Factor in Journal Citation Reports is 4.91.
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| 14. | The impact factor of this journal was 1.042 in 2013.
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| 15. | The journal has a 2014 impact factor of 5.139.
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| 16. | The journal has a 2014 impact factor of 2.652.
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| 17. | In 2015 it had an impact factor of 1.207.
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| 18. | The journal has a 2014 impact factor of 4.606.
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| 19. | They accumulate a total impact factor of 1, 165.
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| 20. | The Journal Citation Reports 2013 impact factor was 1.674.
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