Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 225 |
| 2 | United States | 113 |
| 3 | Spain | 49 |
| 4 | Italy | 47 |
| 5 | Canada | 39 |
| 6 | Netherlands | 30 |
| 7 | United Kingdom | 30 |
| 8 | Germany | 29 |
| 9 | Taiwan | 27 |
| 10 | Portugal | 27 |
| 11 | Belgium | 19 |
| 12 | Turkey | 18 |
| 13 | France | 18 |
| 14 | South Korea | 14 |
| 15 | Poland | 13 |
| 16 | Australia | 12 |
| 17 | Brazil | 10 |
| 18 | Norway | 8 |
| 19 | Denmark | 7 |
| 20 | Iran | 6 |
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.