1. Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands;
2. Department of Clinical Sciences, College of Health and Life Sciences, Brunel University London, London, UK;
3. Centro de Investigación Clínica ACISC, Asistencia Científica de Alta Complejida, Bogota, Colombia;
4. Rosario Graduate School of Business, School of Business, Administración en Salud, Universidad del Rosario, Bogotá, Colombia