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Trials by country.
| Country | Count | % Of trials |
|---|---|---|
| United States | 317 | 39.4 |
| China | 92 | 11.4 |
| India | 45 | 5.6 |
| Netherlands | 38 | 4.7 |
| Italy | 37 | 4.6 |
| Japan | 28 | 3.5 |
| Canada | 24 | 3.0 |
| Australia | 22 | 2.7 |
| France | 21 | 2.6 |
| Korea, Republic of | 21 | 2.6 |
| United Kingdom | 18 | 2.2 |
| Denmark | 17 | 2.1 |
| Egypt | 14 | 1.7 |
| Belgium | 12 | 1.5 |
| Germany | 12 | 1.5 |
