1 Department of Internal Medicine, Division of Endocrinology, Radboud University Medical Center, Nijmegen, The Netherlands.
2 Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.
3 Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
4 Department of Radiology, Mayo Clinic, Rochester, Minnesota.
5 Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota.
6 Department of Endocrinology, University Hospital Center Zagreb, Zagreb, Croatia.
7 National Institute of Endocrinology C. I. Parhon, Bucharest, Romania, Bucharest, Romania.
8 Carol Davila University of Medicine and Pharmacy, Chair of Endocrinology, Bucharest, Romania.
9 Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland.
10 Service d'Endocrinologie Hôpital Haut-Lévêque, CHU de Bordeaux, Pessac, France.
11 Department of Applied Health Research, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
12 Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.
13 Division of Endocrinology, Center Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada.
14 Fédération d'Endocrinologie, Groupement Hospitalier Est, Hospices Civils de Lyon, Bron, France.
15 Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Wuerzburg, Wuerzburg, Germany.
16 Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg, Germany.
17 Chair and Department of Endocrinology, Jagiellonian University, Collegium Medicum, Krakow, Poland.
18 Addenbrooke's Hospital, Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge and NIHR Biomedical Research Center, Cambridge, UK.
19 Endocrinology in Charlottenburg, Berlin, Germany.
20 Department of Endocrinology, Center Hospitalier Universitaire de Liège, Liège, Belgium.
21 Medizinische Klinik und Poliklinik IV Ludwig-Maximilians-Universität München, Munich, Germany.
22 Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, UniversitätsSpital Zürich, Zurich, Switzerland.
23 Endocrinology Department, Hospital General Universitario de Albacete, Albacete, Spain.