Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 127 |
| 2 | Italy | 80 |
| 3 | France | 77 |
| 4 | United Kingdom | 58 |
| 5 | Spain | 57 |
| 6 | United States | 40 |
| 7 | South Korea | 32 |
| 8 | Germany | 31 |
| 9 | Brazil | 18 |
| 10 | India | 18 |
| 11 | Portugal | 15 |
| 12 | Denmark | 14 |
| 13 | Australia | 12 |
| 14 | Netherlands | 11 |
| 15 | Canada | 10 |
| 16 | Finland | 10 |
| 17 | Sweden | 9 |
| 18 | Austria | 8 |
| 19 | Hong Kong | 8 |
| 20 | Greece | 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.