Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 3,329 |
| 2 | United States | 1,297 |
| 3 | United Kingdom | 661 |
| 4 | Germany | 412 |
| 5 | Italy | 388 |
| 6 | South Korea | 300 |
| 7 | Spain | 276 |
| 8 | Australia | 262 |
| 9 | Hong Kong | 231 |
| 10 | Canada | 227 |
| 11 | Singapore | 225 |
| 12 | Netherlands | 184 |
| 13 | Switzerland | 175 |
| 14 | Sweden | 174 |
| 15 | Japan | 161 |
| 16 | Denmark | 159 |
| 17 | Iran | 134 |
| 18 | France | 122 |
| 19 | India | 108 |
| 20 | Belgium | 94 |
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.