Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 154 |
| 2 | China | 93 |
| 3 | France | 66 |
| 4 | Germany | 50 |
| 5 | Japan | 47 |
| 6 | Canada | 43 |
| 7 | Italy | 28 |
| 8 | United Kingdom | 20 |
| 9 | Australia | 16 |
| 10 | Hong Kong | 15 |
| 11 | Spain | 14 |
| 12 | Belgium | 13 |
| 13 | South Korea | 13 |
| 14 | Taiwan | 12 |
| 15 | Czech Republic | 10 |
| 16 | Iran | 10 |
| 17 | Brazil | 9 |
| 18 | India | 7 |
| 19 | Switzerland | 7 |
| 20 | Saudi Arabia | 7 |
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.