Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 595 |
| 2 | United States | 98 |
| 3 | Macao | 10 |
| 4 | South Korea | 8 |
| 5 | India | 7 |
| 6 | Hong Kong | 6 |
| 7 | Italy | 5 |
| 8 | Spain | 3 |
| 9 | Germany | 3 |
| 10 | United Kingdom | 3 |
| 11 | Iran | 3 |
| 12 | France | 2 |
| 13 | Denmark | 2 |
| 14 | Netherlands | 2 |
| 15 | Canada | 2 |
| 16 | Malaysia | 2 |
| 17 | Japan | 2 |
| 18 | Poland | 2 |
| 19 | Indonesia | 1 |
| 20 | Australia | 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.