Catholic University of Leuven
Belgium
Aristotle University of Thessaloniki
Greece
Zealend University Hospital Dept of Oncology
Denmark
University Hospitals Bristol and Weston NHS Foundation Trust
UK
Harvard Medical School
USA
UKER, FAU Erlangen-Nürnberg
Germany
Pokhara University Teaching Hospital
Nepal
Ningxia Medical University
China
University of Mainz
Germany
Radio-oncologist, Mexican Institute of Social Security
Mexico
Pusan National University
South Korea