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Search combinations used in electronic sources.
| Search terms | Web of Science | CINAHLa | PubMed | PsycINFO | Google Scholar | mHealth Evidence | US NIDDKb Diabetes Research Center |
| Combination 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Combination 2 | ✓ | ✓ | ✓ | ✓ | ✓ | ||
| Combination 3 | ✓ | ✓ |
aCINAHL: Cumulative Index to Nursing and Allied Health Literature.
bNIDDK: National Institute of Diabetes and Digestive and Kidney Diseases.
