| HARD Track Overview in TREC 2003: High Accuracy Retrieval from Documents Recent countries visiting this post |  |
 | 9 | United States |
 | 1 | |
 | 1 | Russian Federation |
| HARD Track Overview in TREC 2003: High Accuracy Retrieval from Documents Recent countries visiting this post | |
| 9 | United States |
| 1 | |
| 1 | Russian Federation |