[1] Yale Univ, Sch Med, Endocrinol Sect, New Haven, CT 06520 USA
[2] Yale New Haven Med Ctr, New Haven, CT 06504 USA
[3] Int Diabet Ctr Pk Nicollet, Minneapolis, MN USA
[4] Univ N Carolina, Sch Med, Div Endocrinol, Chapel Hill, NC USA
[5] Vrije Univ Amsterdam Med Ctr, Ctr Diabet, Dept Internal Med, Amsterdam, Netherlands
[6] Univ Pisa, Sch Med, Dept Med, I-56100 Pisa, Italy
[7] Diabet Zentrum Bad Lauterberg, Bad Lauterberg im Harz, Germany
[8] Univ So Calif, Keck Sch Med, Div Endocrinol, Los Angeles, CA 90033 USA
[9] Aristotle Univ Thessaloniki, Dept Med 2, GR-54006 Thessaloniki, Greece
[10] Thomas Jefferson Univ, Jefferson Med Coll, Dept Family & Community Med, Philadelphia, PA 19107 USA
[11] Churchill Hosp, Oxford Ctr Diabet Endocrinol & Metab, Oxford OX3 7LJ, England
[12] Oxford Biomed Res Ctr, Natl Inst Hlth Res NIHR, Oxford, England
[13] Univ Oxford, Harris Manchester Coll, Oxford, England