Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Naotsuka Okayama and Kenro Imaeda and Takashi Kato,Predictive clinical characteristics for the efficacy of vildagliptin monotherapy in Japanese patients with type 2 diabetes mellitus : a multicenter study,Diabetology international,21901678,Tokyo : Springer Japan Production Department,2013,4,3,179-185,https://cir.nii.ac.jp/crid/1522262180645979008,