Efficacy and safety comparison of sitagliptin and glimepiride in elderly Japanese patients with type 2 diabetes: START-J. (October 2016) - Shihara, Nobuyuki; Terauchi, Yasuo; Ishida, Hitoshi; Kitaoka, Masafumi; Satoh, Jo; Yabe, Daisuke; Yamada, Yuichiro; Seino, Yutaka