1. International Atomic Energy Agency, Vienna, Austria;
2. Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria;
3. Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology, Vienna, Austria;
4. Medical Radiation Physics, Department of Medical Physics and Department of Medical and Health Sciences, Linkoping University, Linköping, Sweden;
5. Department of Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital, Stockholm, Sweden;
6. Instituto Nacional De Câncer, Rio De Janeiro, Brazil;
7. Chinese Centre for Disease Control and Prevention, Beijing, China;
8. Beijing Cancer Hospital, Beijing, China;
9. National Radiation Protection Institute, Prague, Czech Republic;
10. Maria Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology, Warsaw, Poland;
11. National Institute of Oncology and Radiobiology, Havana, Cuba;
12. Radiation Standards Section, Radiation Safety Systems Division, Bhabha Atomic Research Centre Trombay, Mumbai, India;
13. SSDL, Bureau of Radiation and Medical Devices, Department of Medical Science, Nonthaburi, Thailand;
14. CHU Charleroi, Hopital Andre Vesale, Montigny-le-Tilleul, Belgium;
15. Cancer Centre, Helsinki University Hospital, Helsinki, Finland;
16. University of Leeds, St James’s University Hospital, Leeds, United Kingdom;
17. Imaging and Radiation Oncology Core Houston QA Centre, Anderson Cancer Centre, Houston, TX, USA;
18. Institute of Medical Physics, School of Physics, University of Sydney, Sydney, Australia