1. Endocrinology Unit; Pediatric Research Institute Sant Joan de Déu, University of Barcelona; Esplugues Spain
2. Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM); Health Institute Carlos III; Madrid Spain
3. Pediatric Cardiology Department, Hospital Materno-Infantil Vall d'Hebron; Autonomous University of Barcelona; Barcelona Spain
4. Department of Pediatrics, Dr. Josep Trueta Hospital; Girona Institute for Biomedical Research; Girona Spain
5. Cardiology Department; Pediatric Research Institute Sant Joan de Déu, University of Barcelona; Esplugues Spain
6. Pediatric and Adolescent Endocrinology; University Hospital Gasthuisberg; Leuven Belgium
7. Department of Development and Regeneration; University of Leuven; Leuven Belgium
8. Paediatric Cardiology Department; Royal Brompton and Harefield NHS Foundation Trust; London UK