1. University of Defense in Belgrade, Military medical academy
2. Center for Health Technology and Services Research - CINTESIS, Faculty of Medicine, Porto University, Portugal Department of Anaesthesiology, Centro Hospitalar de Vila Nova de Gaia / Espinho, Vila Nov
3. Rambam Health care Campus and The Ruth and Bruce Rappaport Faculty of Medicine, Technion e Israel Institute of Technology
4. Consultant Emeritus University College Hospital NHS Foundation Trust