Efficacy and Safety of Liraglutide Versus Placebo as Add-on to Glucose-Lowering Therapy in Patients With Type 2 Diabetes and Moderate Renal Impairment (LIRA-RENAL): A Randomized Clinical Trial. - Davies MJ; Bain SC; Atkin SL; Rossing P; Scott D; Shamkhalova MS; Bosch-Traberg H; Syrén A; Umpierrez GE (Diabetes care, 2016)