Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 93 |
| 2 | United Kingdom | 60 |
| 3 | Canada | 54 |
| 4 | France | 53 |
| 5 | Brazil | 49 |
| 6 | India | 39 |
| 7 | China | 39 |
| 8 | Iran | 26 |
| 9 | Netherlands | 21 |
| 10 | South Korea | 20 |
| 11 | Germany | 20 |
| 12 | Japan | 18 |
| 13 | Greece | 18 |
| 14 | Italy | 17 |
| 15 | Australia | 15 |
| 16 | Portugal | 14 |
| 17 | Cyprus | 11 |
| 18 | Russia | 11 |
| 19 | Spain | 10 |
| 20 | Sweden | 9 |
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.