Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 440 |
| 2 | Japan | 366 |
| 3 | Greece | 54 |
| 4 | China | 41 |
| 5 | Italy | 40 |
| 6 | United Kingdom | 32 |
| 7 | India | 30 |
| 8 | Saudi Arabia | 22 |
| 9 | South Korea | 22 |
| 10 | Germany | 22 |
| 11 | France | 21 |
| 12 | Denmark | 18 |
| 13 | Canada | 17 |
| 14 | Iran | 17 |
| 15 | Malaysia | 17 |
| 16 | Portugal | 15 |
| 17 | Australia | 15 |
| 18 | Tunisia | 14 |
| 19 | Spain | 14 |
| 20 | Turkey | 13 |
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.