Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 429 |
| 2 | China | 137 |
| 3 | Spain | 57 |
| 4 | India | 44 |
| 5 | Iran | 39 |
| 6 | United Kingdom | 37 |
| 7 | Australia | 29 |
| 8 | Italy | 27 |
| 9 | France | 20 |
| 10 | South Korea | 19 |
| 11 | Portugal | 17 |
| 12 | Brazil | 16 |
| 13 | Germany | 15 |
| 14 | Taiwan | 14 |
| 15 | Netherlands | 14 |
| 16 | Greece | 12 |
| 17 | Israel | 12 |
| 18 | Canada | 11 |
| 19 | Belgium | 10 |
| 20 | Japan | 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.