[1] Off Asian Assoc Study Diabet, Tokyo, Japan
[2] Kansai Elect Power Med Res Inst, Yutaka Seino Distinguished Ctr Diabet Res, Kobe, Hyogo, Japan
[3] Kansai Elect Power Hosp, Ctr Diabet Metab & Endocrinol, Osaka, Japan
[4] Gifu Univ, Dept Diabet & Endocrinol, Grad Sch Med, Gifu, Japan
[5] Kobe Univ, Div Mol & Metab Med, Dept Physiol & Cell Biol, Grad Sch Med, Kobe, Hyogo, Japan