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Top 10 corresponding authors’ countries per document from 2017 to 2022.
| Countries | Single country publications, n | Multiple country publications, n |
| United States | 5858 | 752 |
| Australia | 792 | 281 |
| United Kingdom | 745 | 288 |
| Canada | 629 | 219 |
| China | 532 | 180 |
| Germany | 475 | 218 |
| Netherlands | 489 | 179 |
| Italy | 504 | 146 |
| Spain | 405 | 123 |
| India | 357 | 91 |
