[1] Sahlgrens Univ Hosp, Res Ctr Endocrinol & Metab, SE-41345 Gothenburg, Sweden
[2] St Bartholomews Hosp, Dept Endocrinol, London, England
[3] Univ Wurzburg, Wurzburg, Germany
[4] Aarhus Kommune Hosp, DK-8000 Aarhus, Denmark
[5] St Thomas Hosp, London, England
[6] Johannes Gutenberg Univ Mainz, D-6500 Mainz, Germany
[7] Univ Hosp Gasthuisberg, Dept Endocrinol, B-3000 Louvain, Belgium
[8] Univ Freiburg Klinikum, Freiburg, Germany
[9] Univ Hosp, Odense, Denmark
[10] Univ Liege, Dept Endocrinol, Liege, Belgium
[11] Novo Nordisk Pharmaceut, Copenhagen, Denmark