Hebert, Katrine P.
Klarskov, Niels
Bagi, Per
Biering-Sørensen, Fin
Elmelund, Marlene
Article History
Received: 14 November 2019
Revised: 20 December 2019
Accepted: 20 December 2019
First Online: 8 January 2020
Compliance with ethical standards
:
: The study was approved by the Danish data protection agency and the Danish patient safety authority. We certify that all applicable institutional and governmental regulations concerning the ethical use of data originally collected for clinical purposes were followed during the course of this research.
: NK and KPH have received travel grants from Contura. ME has received honoraria and travel grants from Contura. However, Contura had no involvement in the collection, analysis, interpretation, or write up of this paper. PB and FBS have no disclosures to declare.