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Search strategy on PubMed with filter according to study designs (randomized controlled trials).
| Items | MeSHa terms | Search |
| 7 | 6 | (Type 2 diabetes mellitus[MeSH Terms]) AND (((vitamin D[MeSH Terms]) OR (Calciferol[MeSH Terms])) OR (1,25-Dihydroxycholecalciferol[MeSH Terms])). Filters: Randomized Controlled Trial |
aMeSh: Medical Subject Headings.
