| Acquired resistance to the anti-EFGR monoclonal antibody cetuximab in colorectal cancer | 19 |
| 11 / 2012 | 12 / 2012 | 01 / 2013 | 02 / 2013 | 03 / 2013 | 04 / 2013 | 05 / 2013 | |
| Acquired resistance to the anti-EFGR monoclonal antibody cetuximab in colorectal cancer | 2 | 0 | 2 | 1 | 1 | 2 | 7 |
| 1 | United States of America | 9 |
| 2 | Germany | 2 |
| 3 | Argentina | 1 |
| 4 | Colombia | 1 |
| 5 | Spain | 1 |
| 6 | Japan | 1 |
| 7 | Taiwan | 1 |
| 1 | Santa Clara | 2 |
| 2 | Seattle | 2 |
| 3 | Barcelona | 1 |
| 4 | Belleville | 1 |
| 5 | Morrisville | 1 |
| 6 | Munro | 1 |
| 7 | Osaka | 1 |
| 8 | Redwood City | 1 |
| 9 | Taipei | 1 |
| 10 | Woodbridge | 1 |