Funding for this research was provided by:
Private Universität Witten/Herdecke gGmbH
Received: 9 April 2021
Accepted: 20 December 2021
First Online: 14 January 2022
: The ‘PRO patients study’ was performed in accordance with the Declaration of Helsinki. It obtained ethical approval from the Ethics Commission of Witten/Herdecke University (reference number: 156/2020, date of approval: 08/26/2020). Participants received written information and provided informed consent.
: All participants provided informed consent for the analysis and publication of data assessed during the cross-sectional survey.
: The authors declare that they have no competing interests.