Metformin use and cardiovascular events in patients with type 2 diabetes and chronic kidney disease - Charytan, David M; Solomon, Scott D; Ivanovich, Peter; Remuzzi, Giuseppe; Cooper, Mark E; Mcgill, Janet B; Parving, Hans-Henrik; Parfrey, Patrick; Singh, Ajay K; Burdmann, Emmanuel de Almeida (Diabetes obesity & metabolism, 2019)