Table 2.
Top 10 countries in terms of number of publications.
| Ranking | Country | Publications | Centrality※ | Percentage (%) |
|---|---|---|---|---|
| 1 | China | 220 | 0.13 | 21.38 |
| 2 | USA | 148 | 0.72 | 14.38 |
| 3 | Canada | 91 | 0.15 | 8.84 |
| 4 | Japan | 76 | 0.11 | 7.39 |
| 5 | Germany | 72 | 0.39 | 7.00 |
| 6 | Brazil | 57 | 0 | 5.54 |
| 7 | India | 56 | 0.11 | 5.44 |
| 8 | South Korea | 46 | 0.06 | 4.47 |
| 9 | Iran | 44 | 0.11 | 4.28 |
| 10 | Sweden | 41 | 0.1 | 3.98 |
Notes: ※Centrality is an indicator of the importance of a node in the network, and a larger centrality value means that the node is more important in the whole network.