Juanita Haagsma is Assistant Professor at the Department of Public Health at the Erasmus MC in Rotterdam, the Netherlands. At the Department of Public Health of the Erasmus MC, she is a member of the Health Technology Assessment and Implementation research team. In the past decade, dr. Haagsma has been involved in many studies that have tested the psychometric properties of the EQ-5D-3L and 5L and used the EQ-5D in a range of disease and injury patient groups, as well as general population samples.