| A Comparison of Two Document Clustering Approaches for Clustering Medical Documents Recent countries visiting this post |  |
 | 7 | United States |
 | 2 | Russian Federation |
 | 1 | France |
 | 1 | Japan |
 | 1 |
| A Comparison of Two Document Clustering Approaches for Clustering Medical Documents Recent countries visiting this post | |
| 7 | United States |
| 2 | Russian Federation |
| 1 | France |
| 1 | Japan |
| 1 |