Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 1,256 |
| 2 | United States | 356 |
| 3 | Italy | 241 |
| 4 | India | 163 |
| 5 | Germany | 134 |
| 6 | Brazil | 133 |
| 7 | Poland | 102 |
| 8 | Spain | 100 |
| 9 | France | 96 |
| 10 | Iran | 95 |
| 11 | Japan | 93 |
| 12 | Belgium | 83 |
| 13 | Turkey | 80 |
| 14 | South Korea | 67 |
| 15 | Hungary | 66 |
| 16 | Czech Republic | 54 |
| 17 | Switzerland | 46 |
| 18 | Egypt | 45 |
| 19 | United Kingdom | 44 |
| 20 | Netherlands | 42 |
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.