Funding for this research was provided by:
Ministry of Social Affairs and Employment (5100-22709)
Received: 3 October 2018
Accepted: 5 August 2019
First Online: 9 August 2019
Ethics approval and consent to participate
: The research was conducted in accordance with the declaration of Helsinki. The study protocol did not meet the criteria of the “Medical-scientific research with human participants Act”, i.e. it was not a study of a medical nature and the participants are not subject to procedures or are required to follow rules of behaviour [CCMO (Central Committee on Research Involving Human Subjects). The Medical Ethics Committee of the Academic Medical Centre stated that no ethical approval was required for this study (W17_057 # 17.074.All participants were given detailed information about the study in advance to enable them to give written informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.