Received: 16 July 2020
Accepted: 12 August 2020
First Online: 26 August 2020
Ethics approval and consent to participate
: We complied with the guidelines for human studies and our research was conducted ethically in accordance with the World Medical Association Declaration of Helsinki. Information revealing the subject’s identity is to be avoided. The study was approved by the local Clinical Research Ethics Committee (PR (AG)270/2020) with exemption from informed consent.
: The authors declare that they have no competing interests.