Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | United States | 71 |
| 2 | China | 15 |
| 3 | United Kingdom | 12 |
| 4 | Hong Kong | 10 |
| 5 | Australia | 8 |
| 6 | Macao | 6 |
| 7 | Canada | 6 |
| 8 | Iran | 5 |
| 9 | Turkey | 5 |
| 10 | Germany | 4 |
| 11 | Taiwan | 4 |
| 12 | South Korea | 3 |
| 13 | Spain | 2 |
| 14 | Malaysia | 2 |
| 15 | Egypt | 2 |
| 16 | Japan | 1 |
| 17 | Israel | 1 |
| 18 | Lebanon | 1 |
| 19 | Belgium | 1 |
| 20 | Mexico | 1 |
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.