Wang, T. ., McNeill, A. ., Chen, Y. ., O’Neill, E. ., & Engel, S. . (2018). Characteristics of Elderly Patients Initiating Sitagliptin or Non-DPP-4-Inhibitor Oral Antihyperglycemic Agents: Analysis of a Cross-Sectional US Claims Database. Diabetes Therapy : Research, Treatment and Education of Diabetes and Related Disorders. https://doi.org/10.1007/s13300-017-0360-6 (Original work published 2018)