Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 6,881 |
| 2 | United States | 1,137 |
| 3 | Australia | 706 |
| 4 | India | 702 |
| 5 | Iran | 653 |
| 6 | Spain | 566 |
| 7 | Italy | 486 |
| 8 | South Korea | 473 |
| 9 | United Kingdom | 446 |
| 10 | Brazil | 430 |
| 11 | France | 427 |
| 12 | Turkey | 414 |
| 13 | Canada | 374 |
| 14 | Portugal | 307 |
| 15 | Malaysia | 306 |
| 16 | Germany | 199 |
| 17 | Hong Kong | 193 |
| 18 | Poland | 178 |
| 19 | Egypt | 159 |
| 20 | Japan | 152 |
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.