Funding for this research was provided by:
This study is part-financed by the European Regional Development Fund, the province and municipality of Groningen, and the province of Drenthe (T-3036)
Text and Data Mining valid from 2019-08-14
Received: 21 August 2018
Accepted: 24 July 2019
First Online: 14 August 2019
Ethics approval and consent to participate
: The participants received no compensation for their participation and provided written informed consent before the start of the study. The study protocol was approved by the Medical Ethics Board of the University Medical Center of Groningen [M18.231373].
: Not applicable.
: The authors declare that they have no competing interests.