Effects and Safety of Linagliptin as an Add-on Therapy in Advanced-Stage Diabetic Nephropathy Patients Taking Renin-Angiotensin-Aldosterone System Blockers - Yuichiro Ueda; Hiroki Ishii; Taisuke Kitano; Mitsutoshi Shindo; Haruhisa Miyazawa; Kiyonori Ito; Keiji Hirai; Yoshio Kaku; Honami Mori; Taro Hoshino; Susumu Ookawara; Masafumi Kakei; et al. (AboutScience Srl, 2016)