[1] Aarhus Univ Hosp, Dept Oncol, Aarhus, Denmark
[2] Hosp Vejle, Dept Oncol, Vejle, Denmark
[3] Odense Univ Hosp, Dept Oncol, Odense, Denmark
[4] Uniklinikum Gustav Carl Carus Dresden, Dept Radiotherapy, Dresden, Germany
[5] Aalborg Univ Hosp, Dept Oncol, Aalborg, Denmark
[6] Stavanger Univ Hosp, Dept Oncol, Stavanger, Norway
[7] Hosp Friedrichstadt, Dept Radiotherapy, Dresden, Germany
[8] Rigshosp, DBCG, Copenhagen, Denmark
[9] Aarhus Univ Hosp, Dept Expt Clin Oncol, Aarhus, Denmark