Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 2,248 |
| 2 | Italy | 382 |
| 3 | India | 377 |
| 4 | United States | 308 |
| 5 | France | 187 |
| 6 | Egypt | 144 |
| 7 | Germany | 142 |
| 8 | Spain | 136 |
| 9 | Poland | 131 |
| 10 | South Korea | 104 |
| 11 | Brazil | 103 |
| 12 | Czech Republic | 61 |
| 13 | Russia | 58 |
| 14 | Taiwan | 58 |
| 15 | Australia | 58 |
| 16 | Iran | 57 |
| 17 | United Kingdom | 57 |
| 18 | Portugal | 57 |
| 19 | Belgium | 50 |
| 20 | Turkey | 46 |
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.