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Table 1 Characteristics and frequency of national papers ranked in the top 10 countries

From: The visualized knowledge map and hot topic analysis of glomalin-related soil proteins in the carbon field based on Citespace

Country

Frequency

Centrality

Starting year

China

181

0.54

2003

USA

96

0.27

1999

India

71

0.08

2009

Brazil

47

0.09

2006

Spain

32

0.33

2003

Australia

27

0.10

2002

Czech Republic

23

0.06

2016

Germany

19

0.26

2007

France

16

0.32

2007

Chile

13

0.03

2000