42B123B12B12B12 B12DNANIHB12B12B12 EPIC-Oxford689226231232B12118 pmol/L52%7%1B12B12B12 B12B12NIHB12 NICEB12B12metforminPPIB12 B122024Nutrition Bulletin19B12B12B12B12B12B12 42B12B12B12 B12B12B1… [+916 chars]