Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 718 |
| 2 | United States | 704 |
| 3 | Germany | 201 |
| 4 | France | 159 |
| 5 | United Kingdom | 124 |
| 6 | Saudi Arabia | 100 |
| 7 | Japan | 95 |
| 8 | Canada | 89 |
| 9 | South Korea | 82 |
| 10 | Russia | 66 |
| 11 | Australia | 60 |
| 12 | Sweden | 59 |
| 13 | Spain | 53 |
| 14 | India | 49 |
| 15 | Italy | 35 |
| 16 | Netherlands | 26 |
| 17 | Switzerland | 22 |
| 18 | Hong Kong | 20 |
| 19 | Norway | 20 |
| 20 | Singapore | 18 |
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.