Johansson Kostenniemi, Urban http://orcid.org/0000-0001-9885-2321
Karlsson, Linda
Silfverdal, Sven-Arne
Mehle, Christer
Funding for this research was provided by:
The regional agreement between Umeå University and the Västerbotten County Council (VLL-681161, VLL-765131)
Västerbotten Läns Landsting (VLL-662391)
Kempestiftelserna (2016-11-25)
Article History
First Online: 24 July 2019
Conflict of interest
: Dr. Johansson Kostenniemi reports grants from the regional agreement between Umeå University and the Västerbotten County Council (ALF), grants from Västerbotten County Council, grants from the JC Kempe Memorial Foundation, during the conduct of the study. Dr. Karlsson has nothing to disclose. Dr. Silfverdal has nothing to disclose. Dr. Mehle reports grants from the regional agreement between Umeå University and the Västerbotten County Council (ALF), grants from Västerbotten County Council, during the conduct of the study.
: Our study was approved by the Regional Ethics Board in Umeå, Sweden, including waiving the use of informed consent due to the retrospective study design (Ethical Approval Numbers; 08-208M, 2015/336-32 and 2017/182-31).