Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 2,109 |
| 2 | United States | 1,091 |
| 3 | India | 482 |
| 4 | Spain | 432 |
| 5 | South Korea | 339 |
| 6 | Italy | 232 |
| 7 | Canada | 217 |
| 8 | Iran | 145 |
| 9 | Australia | 124 |
| 10 | Brazil | 120 |
| 11 | France | 120 |
| 12 | Taiwan | 100 |
| 13 | United Kingdom | 91 |
| 14 | Sweden | 86 |
| 15 | Portugal | 84 |
| 16 | Japan | 82 |
| 17 | Germany | 82 |
| 18 | Malaysia | 81 |
| 19 | Belgium | 74 |
| 20 | Denmark | 69 |
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.