Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 373 |
| 2 | Brazil | 351 |
| 3 | Iran | 158 |
| 4 | Saudi Arabia | 122 |
| 5 | Turkey | 112 |
| 6 | Japan | 79 |
| 7 | United States | 56 |
| 8 | Poland | 52 |
| 9 | South Korea | 49 |
| 10 | India | 46 |
| 11 | Italy | 39 |
| 12 | Germany | 36 |
| 13 | United Kingdom | 36 |
| 14 | Pakistan | 36 |
| 15 | Egypt | 25 |
| 16 | France | 23 |
| 17 | Spain | 22 |
| 18 | Russia | 19 |
| 19 | South Africa | 15 |
| 20 | Argentina | 15 |
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.