Rollvén, Erik
Blomqvist, Lennart
Öistämö, Emma
Hjern, Fredrik
Csanaky, György
Abraham-Nordling, Mirna
Article History
First Online: 14 February 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The study was approved by the regional ethical review board (2011/1371-31/3).
: Each author has participated sufficiently in the submission and takes public responsibility for its content.