Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 128 |
| 2 | United States | 89 |
| 3 | Japan | 56 |
| 4 | India | 51 |
| 5 | France | 47 |
| 6 | Italy | 35 |
| 7 | United Kingdom | 30 |
| 8 | Germany | 22 |
| 9 | Australia | 18 |
| 10 | Iran | 18 |
| 11 | Russia | 17 |
| 12 | Spain | 16 |
| 13 | Mexico | 12 |
| 14 | Czech Republic | 10 |
| 15 | Canada | 8 |
| 16 | Greece | 8 |
| 17 | Taiwan | 7 |
| 18 | South Korea | 7 |
| 19 | Turkey | 6 |
| 20 | Brazil | 5 |
Our authors submit research articles from all over the world. Authors collaborate frequently with peers at different institutions and in different countries/regions. This graph indicates the number of primary corresponding authors at the country/region level in the last five years.