Letter: economic impact of combining metformin with dipeptidyl peptidase-4 inhibitors in diabetic patients with renal impairment in spanish patients (diabetes metab j 2015;39:74-81).
Division of Endocrinology and Metabolism, Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea.
Hannah
H
Seok