TABLE 5
Number of hits of the search on epidemiological studies covering the period of 2009–2010.
| Search | PubMed | Web of science | PubMed and web of science combined after de‐duplication |
|---|---|---|---|
| Epidemiological studies | 125 | 277 | 170 |
Number of hits of the search on epidemiological studies covering the period of 2009–2010.
| Search | PubMed | Web of science | PubMed and web of science combined after de‐duplication |
|---|---|---|---|
| Epidemiological studies | 125 | 277 | 170 |