Hidden deficiency under bright skies: Vitamin D prevalence and genetic associations in African Type 2 diabetes: A systematic review and meta-analysis. - Abera, Eyob Girma; Himbaro, Samuel Alemu; Megersa, Surafel Worku; Leta, Tesfaye Adugna; Gebremichael, Ermias Habte (PLoS ONE, 2026)