Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HWANG YC,The uncarboxylated form of osteocalcin is associated with improved glucose tolerance and enhanced β-cell function in middle-aged male subjects,Diabetes Metab Res Rev,,,2009,25,,768-772,https://cir.nii.ac.jp/crid/1570854175020452352,