Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 274 |
| 2 | United States | 176 |
| 3 | Germany | 75 |
| 4 | Spain | 61 |
| 5 | Italy | 59 |
| 6 | United Kingdom | 57 |
| 7 | South Korea | 42 |
| 8 | Canada | 40 |
| 9 | France | 37 |
| 10 | India | 27 |
| 11 | Japan | 25 |
| 12 | Taiwan | 25 |
| 13 | Australia | 24 |
| 14 | Czech Republic | 20 |
| 15 | Austria | 17 |
| 16 | Greece | 17 |
| 17 | Sweden | 16 |
| 18 | Switzerland | 14 |
| 19 | Russia | 13 |
| 20 | Netherlands | 13 |
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.