[1] Katholieke Univ Leuven, Clin & Expt Endocrinol, B-3000 Louvain, Belgium
[2] Mt Sinai Hosp, Lunenfeld Tanenbaum Res Inst, Toronto, ON M5G 1X5, Canada
[3] Univ Pisa, Dept Internal Med, PI-56100 Pisa, Italy
[4] Harvard Univ, Sch Med, MGH Program Nutr Metab, Boston, MA 02114 USA
[5] Maine Med Ctr, Res Inst, Scarborough, ME 04074 USA
[6] Baker IDI Heart & Diabet Inst, Epidemiol & Clin Diabet, Melbourne, Vic 3004, Australia