Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 176 |
| 2 | United States | 32 |
| 3 | Taiwan | 27 |
| 4 | South Korea | 26 |
| 5 | Spain | 17 |
| 6 | Iran | 12 |
| 7 | Germany | 11 |
| 8 | India | 11 |
| 9 | Canada | 9 |
| 10 | Italy | 9 |
| 11 | Japan | 6 |
| 12 | Hong Kong | 6 |
| 13 | Brazil | 6 |
| 14 | Australia | 6 |
| 15 | Austria | 5 |
| 16 | Turkey | 5 |
| 17 | Portugal | 5 |
| 18 | United Kingdom | 5 |
| 19 | Malaysia | 4 |
| 20 | Mexico | 4 |
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.