Ruben Diaz, M.D., Ph.D. is the Deputy CEO for International affairs at Sant Joan de Deu Barcelona Children’s Hospital and the Secretary General for European Children´s Hospitals Organisation (ECHO), an organization that brings together Children´s hospital across Europe. The mission of ECHO is to “advocate for children’s health and their access to the best quality care.” ECHO is developing several interrelated work lines to support paediatric centres improve their quality and safety, promote collaborative research and innovation and enrich their capacity for training and workforce development. It also aspires to participate in forums that help establish policy in paediatric care while advocating for the needs of children who require tertiary care.