Marcström, Alexander http://orcid.org/0000-0001-7729-6477
Hägglund, Gunnar
Alriksson-Schmidt, Ann I.
Article History
Received: 24 April 2018
Accepted: 1 February 2019
First Online: 8 February 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Board at Lund University (LU 443–99, revised 2009). All families had given verbal consent to use data for research before inclusion in the CPUP registry. Permission to extract data from the CPUP registry was obtained.
: Not applicable.
: The authors declare that they have no competing interests.
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