Funding for this research was provided by:
European Center for Chiropractic Research Excellence (03-2016-SE/AE)
Text and Data Mining valid from 2020-04-21
Received: 9 January 2020
Accepted: 7 April 2020
First Online: 21 April 2020
Ethics approval and consent to participate
: The trial was approved by the local ethics committee at Karolinska Institutet (2007/1458–31/4). All participants provided written informed consent to participate.
: Not applicable.
: Five of the authors are paid employees of commercial companies. Andreas Eklund works 40% as a clinician at Hälsan Östertälje Praktikertjänst AB, Södertälje, Sweden. Mattias Jonsson works as a clinician at Ledakuten AB, Lidköping, Sweden. Peter Lövgren works as a clinician at Lövgrens Chiropraktorklinik, Stockholm, Sweden. Jakob Petersen-Klingberg works as a clinician at Eureka Kiropraktik, Borlänge, Sweden. Christian Calvert works as a clinician at Activate Rörelsekliniken, Falkenberg, Sweden. None of these affiliations influenced the study design, data collection and analysis, decision to publish, or preparation of the manuscript. There are no patents, products in development or marketed products associated with this research to declare.