Highlights: ? We convened policy makers, experts and citizens to consider resuse of health data. ? Representatives from 21 countries participated. ? Delegated concluded that process of health data reuse needs to be transparent. ? National governments must play a seminalrole. ? Trust is the corner stone for data sharing and reuse.Abstract: Background: The widespread adoption of electronic health records (EHRs) is accelerating the collection of sensitive clinical data. The availability of these data raises privacy concerns, yet sharing the data is essential for public health, longitudinal patient care, and clinical research.Method: Following previous work in the United States , the International Medical Informatics Association convened the 2012 European Summit on Trustworthy Reuse ….