Received: 3 April 2020
Accepted: 15 July 2020
First Online: 25 July 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Medical Faculty Heidelberg (S049–2019) and complied with the Declaration of Helsinki. For the participation of clinical staff, permission of the respective staff council was asked. As the survey was conducted using an anonymous online questionnaire, participants gave their consent by actively sending their completed questionnaires to the study centre. All participants were informed about this procedure in writing and were given the opportunity to ask questions. The Ethics Committee of Medical Faculty Heidelberg confirmed this procedure.
: Not applicable.
: The authors declare that they have no competing interests.