Funding for this research was provided by:
Fonden for Faglig Udvikling af Speciallægepraksis (13/890)
Text and Data Mining valid from 2018-11-15
Received: 6 August 2018
Accepted: 17 October 2018
First Online: 15 November 2018
Compliance with ethical standards
: The authors declare that they have no competing interests.
: All procedures in this study was in accordance with the Helsinki declaration and approved by the local ethical committee.