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