Databases and sources
| Database/source | Focus | Article limit per search term combination |
| Published literature | ||
| PubMed | Health and medical research | None |
| Cochrane Library | Relevant systematic reviews on digital health | None |
| PsycINFO | Mental health and social research | None |
| Google Scholar | All search terms | 200 |
| Greenfile | Impact of climate change on health | None |
| Grey literature | ||
| Key technical agencies (WHO, UNICEF, etc) | Hard-to-reach/marginalisation population specific research guidance—digital and non-digital | 50 |
| Campbell Collaboration | Social sciences | 50 |