Does metformin exposure before ICU stay have any impact on patients' outcome? A retrospective cohort study of diabetic patients. - Jochmans, Sebastien; Alphonsine, Jean-Emmanuel; Chelly, Jonathan; Vong, Ly; Sy, Oumar; Rolin, Nathalie; Ellrodt, Olivier; Monchi, Mehran; Vinsonneau, Christophe (Annals of Intensive Care, 2017)