Funding for this research was provided by:
Text and Data Mining valid from 2019-09-04
Received: 3 April 2019
Accepted: 19 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: This study was approved by the relevant academic center, and it was reviewed by the Ethics Committee of the Northern Ostrobothnia Hospital District, at Oulu University Hospital, in Finland, during the autumn of 2018 (Decision No: 83/2018). The aim and the method of the study were explained to the participants, and they were also informed through a standard written information form. Written informed consent was obtained from the participants prior to inclusion in the study to ensure that the participation was voluntary (Declaration of Helsinki 2013).
: All consents to publish from the participants who took part in this study were obtained.
: The authors declare that they have no competing interests.