Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 271 |
| 2 | United States | 261 |
| 3 | Australia | 83 |
| 4 | United Kingdom | 64 |
| 5 | Italy | 60 |
| 6 | Germany | 56 |
| 7 | Poland | 53 |
| 8 | Canada | 51 |
| 9 | Japan | 39 |
| 10 | Spain | 39 |
| 11 | Hong Kong | 33 |
| 12 | Sweden | 31 |
| 13 | Brazil | 30 |
| 14 | Iran | 27 |
| 15 | Finland | 27 |
| 16 | Malaysia | 24 |
| 17 | South Korea | 23 |
| 18 | Denmark | 22 |
| 19 | Singapore | 21 |
| 20 | India | 20 |
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.