Ranking | Country/Region | Number of literature/article | Centrality |
1 | PEOPLES R CHINA | 3106 | 0.05 |
2 | USA | 2640 | 0.34 |
3 | AUSTRALIA | 513 | 0.05 |
4 | ENGLAND | 464 | 0.26 |
5 | SOUTH KOREA | 452 | 0.09 |
6 | CANADA | 417 | 0.04 |
7 | GERMANY | 335 | 0.03 |
8 | TAIWAN CHINA | 327 | 0.03 |
9 | INDIA | 281 | 0.11 |
10 | SINGAPORE | 212 | 0.01 |