Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 328 |
| 2 | Germany | 125 |
| 3 | United Kingdom | 117 |
| 4 | China | 95 |
| 5 | Australia | 88 |
| 6 | Canada | 56 |
| 7 | Switzerland | 48 |
| 8 | France | 45 |
| 9 | Italy | 44 |
| 10 | Netherlands | 43 |
| 11 | Spain | 24 |
| 12 | Taiwan | 22 |
| 13 | South Korea | 20 |
| 14 | New Zealand | 19 |
| 15 | Japan | 15 |
| 16 | Austria | 15 |
| 17 | Hong Kong | 14 |
| 18 | Denmark | 13 |
| 19 | Brazil | 11 |
| 20 | Belgium | 10 |
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.