Kjerpeseth, Lars J. http://orcid.org/0000-0002-2033-736X
Ellekjær, Hanne
Selmer, Randi
Ariansen, Inger
Furu, Kari
Skovlund, Eva
Funding for this research was provided by:
Norges Teknisk-Naturvitenskapelige Universitet
Article History
Received: 12 March 2018
Accepted: 8 August 2018
First Online: 16 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Data from the Norwegian Patient Register has been used in this publication. The interpretation and reporting of these data are the sole responsibility of the authors, and no endorsement by the Norwegian Patient Register is intended nor should be inferred.