Dr Fabien Claude studied medicine in Lausanne and graduated in 2013. He trained in paediatrics in both Italian- and German-speaking parts of Switzerland and obtained his board certification in 2019. Thereafter, he began a clinical fellowship in paediatric endocrinology and diabetology at the unit led by Prof Urs Zumsteg and Prof Gabor Szinnai at University Children’s Hospital Basel (UKBB). He also spent six months in the Endocrinology & Diabetes Unit at Bambino Gesù Children’s Hospital in Rome, Italy. He is currently a collaborator in this BRCCH project (see link below).