Ethics approval and consent to participate
The study was approved by the Ethics Committee of the Medical Association Hamburg (Germany, study ID PV5368). The study was carried out in accordance to the latest version of the Helsinki Declaration of the World Medical Association. Principles of good clinical practice were respected. Data protection requirements were met. Study participation was voluntary. We obtained written informed consent from all patients participating in the trial. We obtained a waiver of consent for HCPs from the Ethics Committee. Nevertheless, study participation was voluntary and HCPs gave verbal consent before participating in the process interviews.