| Genetic Analysis of the prehistoic peopling of Western Europe: Ancient DNA the role of contamination | 12 |
| 11 / 2012 | 12 / 2012 | 01 / 2013 | 02 / 2013 | 03 / 2013 | 04 / 2013 | 05 / 2013 | |
| Genetic Analysis of the prehistoic peopling of Western Europe: Ancient DNA the role of contamination | 0 | 0 | 2 | 5 | 1 | 0 | 2 |
| 1 | United States of America | 5 |
| 2 | Canada | 4 |
| 3 | Spain | 1 |
| 1 | York | 4 |
| 2 | Saint Louis | 2 |
| 3 | Woodbridge | 2 |
| 4 | Azuqueca De Henares | 1 |
| 5 | Redwood City | 1 |