| Nitrosaminas y Riesgo de Cáncer Gástrico | 100 |
| 11 / 2012 | 12 / 2012 | 01 / 2013 | 02 / 2013 | 03 / 2013 | 04 / 2013 | 05 / 2013 | |
| Nitrosaminas y Riesgo de Cáncer Gástrico | 11 | 4 | 3 | 4 | 9 | 11 | 18 |
| 1 | Spain | 29 |
| 2 | Mexico | 16 |
| 3 | United States of America | 10 |
| 4 | Peru | 9 |
| 5 | Colombia | 8 |
| 6 | Ecuador | 5 |
| 7 | Argentina | 3 |
| 8 | Unknown Country | 3 |
| 9 | Bolivia | 2 |
| 10 | Chile | 2 |
| 1 | Madrid | 9 |
| 2 | Bogotá | 5 |
| 3 | Lima | 4 |
| 4 | New York | 3 |
| 5 | Valencia | 3 |
| 6 | Arequipa | 2 |
| 7 | Guayaquil | 2 |
| 8 | La Garriga | 2 |
| 9 | Laurel | 2 |
| 10 | Mérida | 2 |