Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 672 |
| 2 | United States | 73 |
| 3 | Italy | 65 |
| 4 | Spain | 56 |
| 5 | India | 53 |
| 6 | Iran | 45 |
| 7 | France | 42 |
| 8 | Canada | 39 |
| 9 | South Korea | 37 |
| 10 | United Kingdom | 37 |
| 11 | Germany | 30 |
| 12 | Australia | 27 |
| 13 | Taiwan | 27 |
| 14 | Brazil | 21 |
| 15 | Netherlands | 18 |
| 16 | Turkey | 16 |
| 17 | Poland | 15 |
| 18 | Portugal | 14 |
| 19 | Belgium | 14 |
| 20 | Denmark | 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.