Top nations in immunology

Data provided by Thomson Reuters from its Essential Science Indicators database, January 1999-October 2009

 CountryPapers CitationsCitations per paper
1 Switzerland3,837 108,908 28.38
2 United States55,074 1,461,855 26.54
3 Ireland590 14,821 25.12
4 Japan10,221 237,878 23.28
5 England11,399 262,911 23.06
6 Germany10,495 239,466 22.82
7 France8,549 191,342 22.38
8 Scotland1,649 36,370 22.06
9 Australia4,894 104,509 21.35
10 The Netherlands4,936 104,770 21.23
11 Canada5,475 115,947 21.18
12 Austria1,659 33,642 20.28
13 Belgium2,134 42,801 20.06
14 Israel1,752 34,882 19.91
15 Italy6,258 124,195 19.85
16 Finland1,306 24,229 18.55
17 Denmark2,004 35,901 17.91
18 South Africa906 16,113 17.78
19 Sweden4,433 75,142 16.95
20 Norway1,223 20,397 16.68

The data above were extracted from the Essential Science Indicators database of Thomson Reuters.

This database, currently covering the period January 1999 to October 2009, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and the Thomson Reuters journal-to-category field-definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated.

Here our ranking in immunology is by citations per paper among nations that collected 10,000 or more citations during the period to reveal weighted impact. For articles with multiple authors from different nations, each nation receives full, not fractional, credit. Essential Science Indicators lists nations ranked in the top 50 per cent for a field over a given period, based on total citations.

In immunology, 91 nations are listed, meaning 182 were surveyed. Twenty-eight nations collected at least 10,000 citations. Of particular interest is the outstanding performance of Ireland, which ranks third by citation impact despite its relatively small output. Researchers at Trinity College Dublin published eight of nine highly cited Irish papers in the field: of these, seven were written by Luke O’Neill, a professor at Trinity’s School of Biochemistry and Immunology. Professor O’Neill, who focuses on innate immunity and inflammation, recently received the Science Foundation Ireland Researcher of the Year Award and the Royal Dublin Society-Irish Times

2009 Boyle Medal in recognition of his influential research.

For more information, see http://scientific.thomsonreuters.com/products/esi

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