1. Rijnstate Hospital, Arnhem, the Netherlands (van Schijndel); Erasmus MC, University Medical Center, Rotterdam, the Netherlands (van Schijndel); Erasmus School of Health Policy and Management, Rotterdam, the Netherlands (van Wijngaarden, van de Klundert); Prince Mohammed Bin Salman College of Business and Entrepreneurship, King Abdullah Economic City, Saudi Arabia (van de Klundert).