148 Ou Ou S.M. S.M. Shih Shih C.J. C.J. Chao Chao P.W. P.W. Chu Chu H. H. Kuo Kuo S.C. S.C. Lee Lee Y.J. Y.J. Effects on clinical outcomes of adding dipeptidyl peptidase-4 inhibitors versus sulfonylureas to metformin therapy in patients with type 2 diabetes mellitus Effects on clinical outcomes of adding dipeptidyl peptidase-4 inhibitors versus sulfonylureas to metformin therapy in patients with type 2 diabetes mellitus Ann Intern Med. Here, DPP4 is linked to type 2 diabetes mellitus.