Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 250 |
| 2 | United States | 115 |
| 3 | Spain | 42 |
| 4 | Italy | 40 |
| 5 | Canada | 38 |
| 6 | Netherlands | 33 |
| 7 | Germany | 32 |
| 8 | United Kingdom | 32 |
| 9 | Portugal | 30 |
| 10 | France | 22 |
| 11 | Belgium | 17 |
| 12 | Taiwan | 17 |
| 13 | Turkey | 16 |
| 14 | South Korea | 14 |
| 15 | Brazil | 11 |
| 16 | Poland | 11 |
| 17 | Australia | 11 |
| 18 | Norway | 9 |
| 19 | Denmark | 8 |
| 20 | Hong Kong | 8 |
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.