Doctor Ralph Neijenhuis is a PhD Candidate in Adult Congenital Heart Disease at the Department of Cardiology at the Leiden University Medical Center (LUMC) and the Center for Congenital Heart Disease Amsterdam Leiden (CAHAL). There, he investigates potential treatment options for heart failure in the adult congenital heart disease population. He has obtained his medical degree cum laude from Leiden University in March 2022, and has focused on congenital heart disease from an early stage, with both his BSc and MSc thesis on the subject. During his studies, he spent 9 months at Great Ormond Street Hospital and St Bartholomew’s Hospital in London, United Kingdom, where he investigated the clinical outcomes after the cone reconstruction for Ebstein anomaly. He is a member of the Netherlands Society of Cardiology (NVVC) and European Society of Cardiology.