Indication of the location of corresponding authors.
| Top Countries/ Regions | Authors | |
|---|---|---|
| 1 | China | 1,932 |
| 2 | United States | 273 |
| 3 | Spain | 169 |
| 4 | Brazil | 137 |
| 5 | Iran | 122 |
| 6 | Australia | 120 |
| 7 | Netherlands | 117 |
| 8 | France | 112 |
| 9 | United Kingdom | 110 |
| 10 | Canada | 94 |
| 11 | South Korea | 87 |
| 12 | Argentina | 79 |
| 13 | Germany | 77 |
| 14 | New Zealand | 72 |
| 15 | India | 61 |
| 16 | Japan | 60 |
| 17 | Belgium | 60 |
| 18 | Denmark | 57 |
| 19 | Poland | 54 |
| 20 | Mexico | 47 |
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.