[1] Univ Leicester, Diabet Res Ctr, Leicester, Leics, England
[2] Univ Hosp Leicester, Dept Diabet & Endocrinol, Leicester, Leics, England
[3] Univ Sheffield, Acad Unit Diabet Endocrinol & Metab, Sheffield, S Yorkshire, England
[4] Deakin Univ, Sch Psychol, Fac Hlth, Geelong, Vic, Australia
[5] Australian Ctr Behav Res Diabet, Diabet Victoria, Melbourne, Vic, Australia
[6] AHP Res, Hornchurch, Essex, England
[7] Acad Med Ctr, Dept Med Psychol, Amsterdam, Netherlands
[8] Vrije Univ Amsterdam, Med Ctr, Amsterdam, Netherlands