Text and Data Mining valid from 2019-10-07
Received: 18 February 2019
Accepted: 18 July 2019
First Online: 7 October 2019
Ethics approval and consent to participate
: The original RCT was approved by the local ethics committee (reference number VP20010134) and all procedures were in accordance with the 1964 Helsinki declaration and its later amendments. Under Danish law, the secondary analysis of these de-identified data did not require separate ethics approval (The Act on Processing of Personal Data, December 2012, Section 5.2; Act on Research Ethics Review of Health Research Projects, October 2013, Section 14.2).
: Not applicable.
: The authors have no competing interests to declare.