Losert, Christoph
Shpani, Roel
Kießling, Robert
Freislederer, Philipp
Li, Minglun
Walter, Franziska
Niyazi, Maximilian
Reiner, Michael
Belka, Claus
Corradini, Stefanie http://orcid.org/0000-0001-8709-7252
Funding for this research was provided by:
IT-V (na)
Article History
Received: 3 November 2019
Accepted: 12 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This retrospective study was exempt from requiring ethics approval. Bavarian state law (Bayrisches Krankenhausgesetz/Bavarian Hospital Law §27 Absatz 4 Datenschutz (Dataprotection) allows the use of patient data for research, provided that any person’s related data are kept anonymous. German radiation protection laws request a regular analysis of outcomes in the sense of quality control and assurance, thus in the case of purely retrospective studies no additional ethical approval is needed under German law.
: Not applicable.
: CB, SC and MR received speaker honoraria and research grants from ELEKTA AB (Stockholm, Sweden). SC and PF received speaker honoraria and research grants from C-RAD (Uppsala, Sweden). The other authors declare that they have no competing interests.