Received: 26 May 2020
Accepted: 14 October 2020
First Online: 9 November 2020
Ethics approval and consent to participate
: As a document-based comment on a previous letter in <i>Archives of Public Health</i>, ethical approval was not required, and issues of consent to participate did not arise.
: No consent is required for publication, other than from the authors.
: The authors have no competing interests.