1. Department of Internal Medicine (M.H.A.K., D.M., T.J.V.), Erasmus University Medical Center, 3000 DR Rotterdam, The Netherlands;
2. Departmento de Endocrinología (R.M.d.M., M.J.O., G.M.d.E.), Instituto de Investigaciones Biomédicas Albert Sols, Consejo Superior de Investigaciones Cientificas-UAM, 28029 Madrid, Spain
3. Pathology Department (A.H.), Royal Hospital for Sick Children, Yorkhill National Health Service Trust, Glasgow G3 8SJ, Scotland, United Kingdom
4. Maternal and Child Health Sciences (R.H.), University of Dundee, Dundee DD1 9SY, Scotland, United Kingdom