1. Institut de Recerca Pediàtric Hospital Sant Joan de Déu, University of Barcelona, Esplugues, Barcelona, Spain
2. Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain
3. Pediatric Endocrinology Research Group, Girona Institute for Biomedical Research (IDIBGI) and Dr. Josep Trueta Hospital, Girona, Spain
4. Department of Development & Regeneration, University of Leuven, Leuven, Belgium