Andersson, Kristofer
Malmgren, Barbro
Åström, Eva
Nordgren, Ann
Taylan, Fulya
Dahllöf, Göran
Funding for this research was provided by:
Stockholm County Council
Norrbacka-Eugeniastiftelsen (None)
Article History
Received: 24 June 2019
Accepted: 17 March 2020
First Online: 31 March 2020
Ethics approval and consent to participate
: Written informed consent for participation and sample collection was obtained from all recruited individuals and/or their legal guardians in accordance with the Declaration of Helsinki. The Swedish regional ethics committee in Stockholm approved the study protocol (Daybook no. 157/99, 2014/254–31, and 2012/2106–31/4).
: Consent for publication of individual photographs and radiographs was obtained.
: The authors declare that they have no competing interests.