Received: 20 November 2019
Accepted: 5 July 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki (64th WMA General Assembly, Brazil 2013). According to cantonal and federal law, the project did not fall within the scope of responsibilities of the Ethics Committee of the canton of Zurich, Switzerland (Req-2016-00669).Eligible participants were given information about the research project at the first educational session, during which written information was also distributed.Following the second educational session, one week later, patients were asked whether they would agree to participate in the research study. Fifty percent of the eligible participants gave their written, informed consent.
: Not applicable.
: The authors declare that they have no competing interests.