Bjerregaard, Peter https://orcid.org/0000-0001-7153-8447
Larsen, Christina V. L.
Article History
Received: 24 October 2017
Accepted: 25 January 2018
First Online: 16 April 2018
Ethics approval and consent to participate
: Not applicable. This is a review of previously published papers.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.