[1] Eli Lilly & Co, Indianapolis, IN 46285 USA
[2] Hadassah Hebrew Univ Hosp, Diabet Unit, Jerusalem, Israel
[3] Univ Zagreb, Dubrava Univ Hosp, Dept Internal Med, Zagreb, Croatia
[4] St Augustines Hosp, Chelmsfotd Med Ctr 3, Durban, South Africa
[5] L Warynski Silesian Med Acad, Dept Internal Dis Diabetol & Nephrol, Zabrze, Poland