Ewout Steyerberg is a professor of Clinical Biostatistics and Medical Decision Making at Leiden University Medical Center and Erasmus MC (Rotterdam, the Netherlands). He has been chairing the Department of Biomedical Data Sciences since 2017. He was a Fellow of the Royal Netherlands Society for Arts and Sciences (KNAW). He spent sabbaticals at Duke University (Durham, NC: 1996) en Harvard University (Boston, MA: 2003 and 2005).