Received: 24 January 2020
Accepted: 2 September 2020
First Online: 15 September 2020
Ethics approval and consent to participate
: No confidential, private, or sensitive information was collected. According to the national guidelines Medical Research Involving Human Subjects Act ethics clearance for the study was not necessary, as it did not involve medical scientific research and participants were not subjected to procedures or were required to follow rules of behaviour [CitationRef removed]. The programme directors who were invited were informed about the aim and content of the study and free to choose whether they want to participate or not. By completing the survey they agreed to participate in the study and thereby gave their consent.
: No personal data were published, so no consent for publication was needed.
: During the study AB and DE were members of the Board of Directors of EIN, JV, SP and TLSV were members of the EIN Scientific Advisory Board. The other authors (JJS-H, DCMC) declare that they have no competing interests.