Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | Japan | 172 |
| 2 | Germany | 27 |
| 3 | Brazil | 15 |
| 4 | Italy | 14 |
| 5 | South Korea | 12 |
| 6 | China | 10 |
| 7 | United States | 10 |
| 8 | Turkey | 9 |
| 9 | Switzerland | 6 |
| 10 | Spain | 4 |
| 11 | Portugal | 4 |
| 12 | Saudi Arabia | 4 |
| 13 | India | 4 |
| 14 | Greece | 3 |
| 15 | Netherlands | 3 |
| 16 | Hong Kong | 3 |
| 17 | Thailand | 3 |
| 18 | Poland | 2 |
| 19 | Sweden | 2 |
| 20 | Austria | 2 |
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.