Received: 22 November 2018
Accepted: 7 June 2019
First Online: 1 July 2019
Ethics approval and consent to participate
: Ethical approval of the ethics committee of the Friedrich-Alexander-Universität Erlangen-Nürnberg is applicable (3–17 Bc) and was obtained before starting the study. The aforementioned ethics committee didn’t consider it necessary to obtain declaration of consent to participate, because the project did not include any changes in care or treatment of patients receiving cancer care. All data were processed and saved electronically in depersonalized data sets according to the recommendation of the university hospital’s data protection manager.
: Not applicable.
: The authors declare that they have no competing interests.