Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 252 |
| 2 | China | 185 |
| 3 | Germany | 80 |
| 4 | South Korea | 51 |
| 5 | Denmark | 35 |
| 6 | Japan | 31 |
| 7 | United Kingdom | 25 |
| 8 | Netherlands | 21 |
| 9 | Sweden | 21 |
| 10 | Switzerland | 18 |
| 11 | Canada | 10 |
| 12 | Australia | 10 |
| 13 | Austria | 9 |
| 14 | Taiwan | 9 |
| 15 | Spain | 8 |
| 16 | France | 8 |
| 17 | Belgium | 7 |
| 18 | Singapore | 6 |
| 19 | Italy | 5 |
| 20 | Portugal | 4 |
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.