Funding for this research was provided by:
Norwegian Fund for Post-Graduate Training in Physiotherapy (360.0.1)
Text and Data Mining valid from 2018-12-01
Received: 10 September 2018
Accepted: 16 November 2018
First Online: 4 December 2018
Ethics approval and consent to participate
: The project is conducted according to the Helsinki declaration and approved by the Regional committee for Medical and Health Research Ethics in Norway (REC no. 2013/2030). Project information and consent form were available in Norwegian and English. All patients have provided written informed consent to participate. Parents gave consent when the children were less than 16 years old.
: Not applicable as the manuscript does not contain individual person’s data.
: The authors declare that they have no competing interests.
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