Levic, Katarina
Bulut, Orhan
Hansen, Tine Plato
Gögenur, Ismail
Bisgaard, Thue
Article History
Received: 21 June 2018
Accepted: 28 August 2018
First Online: 11 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors (retrospective study). The study was approved by the National Committee on Health Research and reported to Danish Data Protection Agency.