A genetic epidemiological study in British adults and older adults shows a high heritability of the combined indicator of vitamin B12 status (cB12) and connects B12 status with utilization of mitochondrial substrates and energy metabolism - Dalmia, A; Dib, M-J; Maude, H; Harrington, DJ; Sobczyska-Malefora, A; Andrew, T; Ahmadi, KR (The Journal of Nutritional Biochemistry, 2019)