Jan Vissers is affiliated to the Erasmus University Rotterdam, and the Erasmus School of Health Policy and Management where he had a chair as Professor of Health Services Operations Management between 2004 and 2016. He retired in 2016 but is still active in publishing papers and supervising students Master Healthcare Management doing their thesis work on a topic related to operations management. Sylvia Elkhuizen is Assistant Professor of Health Services Operations Management at the Erasmus School of Health Policy and Management, Erasmus University Rotterdam, the Netherlands. Nathan Proudlove is an Associate Professor in the Health Management Group at Alliance Manchester Business School of the University of Manchester, UK.