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Table 2 The territory distribution of the scientific papers about JCV

From: Mapping the history and current situation of research on John Cunningham virus – a bibliometric analysis

Num Country Record count Percentage(%)
1 USA 968 54.2
2 Japan 190 10.6
3 Italy 173 9.7
4 Germany 158 8.8
5 UK 88 5.0
6 France 72 4.0
7 Spain 48 2.7
8 Switzerland 44 2.5
9 Canada 37 2.1
10 Sweden 36 2.0
11 Taiwan 24 1.3
12 Norway 22 1.2
13 China 15 0.8
14 Australia 14 0.8
15 Poland 13 0.7
16 Belgium 12 0.7
17 Brazil 12 0.7
18 South Korea 12 0.7
19 Lithuania 11 0.6
20 Finland 10 0.6
21 Netherlands 10 0.6