Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 138 |
| 2 | United States | 33 |
| 3 | South Korea | 23 |
| 4 | Taiwan | 21 |
| 5 | Spain | 15 |
| 6 | India | 10 |
| 7 | Iran | 10 |
| 8 | Germany | 9 |
| 9 | Italy | 8 |
| 10 | Canada | 7 |
| 11 | Brazil | 6 |
| 12 | Japan | 5 |
| 13 | Austria | 4 |
| 14 | Hong Kong | 4 |
| 15 | Australia | 4 |
| 16 | Turkey | 4 |
| 17 | Denmark | 3 |
| 18 | Portugal | 3 |
| 19 | Malaysia | 3 |
| 20 | Mexico | 3 |
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.