Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 244 |
| 2 | United States | 169 |
| 3 | Canada | 55 |
| 4 | Brazil | 54 |
| 5 | Australia | 37 |
| 6 | United Kingdom | 37 |
| 7 | Spain | 37 |
| 8 | France | 29 |
| 9 | India | 29 |
| 10 | Germany | 28 |
| 11 | Italy | 28 |
| 12 | Iran | 25 |
| 13 | Switzerland | 14 |
| 14 | Poland | 13 |
| 15 | Russia | 12 |
| 16 | Mexico | 12 |
| 17 | Turkey | 11 |
| 18 | Netherlands | 11 |
| 19 | Chile | 10 |
| 20 | Denmark | 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.