Professor Justin Davies is Chair of the international – DSD care quality committee. He is a member of the NHS England service specification working group, developing national policy to optimise paediatric endocrine services and improve care. He is a Senior Editor for Endocrine Connections. Prof Davies leads the European Society for Paediatric Endocrinology, Winter School. Prof Davies was a past Chair of the British Society of Paediatric Endocrinology and Diabetes 2016-2020.