[1] Kochi Univ, Kochi Med Sch, Dept Endocrinol Metab & Nephrol, Nankoku, Kochi, Japan
[2] Kagawa Univ, Fac Med, Dept Pharmacol, Kagawa, Japan
[3] GV Montgomery VA Med Ctr, Dept Med, Div Endocrinol, Jackson, MS USA
[4] Univ Mississippi, Med Ctr, Jackson, MS 39216 USA