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e-2. Database search results.
| Database | Date Accessed | Results Returned |
|---|---|---|
| PubMed | February 29, 2020 | 3968 |
| Embase | February 29, 2020 | 2168 |
| Web of Knowledge | February 29, 2020 | 981 |
| Cumulative Index to Nursing and Allied Health Literature | February 29, 2020 | 115 |
