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| Funding source | Number | % of the number of publications |
|---|---|---|
| Government and public funds | 312 | 19.2% |
| Universities or research centres | 32 | 9.0% |
| Private companies | 147 | 4.9% |
| NGOs | 39 | 2.4% |
| International organizations | 79 | 2.0% |
| Public private entity | 3 | 0.2% |
| Other | 10 | 0.6% |
| Not reported | 772 | 47.5% |
| None | 355 | 21.8% |
*% sum more than 100% because one article could have more than one category.
