Dipeptidyl peptidase-4 inhibitors as preferable oral hypoglycemic agents in terms of treatment satisfaction: Results from a multicenter, 12-week, open label, randomized controlled study in Japan (PREFERENCE 4 study)

二肽基肽酶-4抑制剂作为治疗满意度更高的口服降血糖药物：一项在日本开展的多中心、12周、开放标签、随机对照研究的结果（PREFERENCE 4 研究）