Funding for this research was provided by:
TNO central government grant: grant for data-collection (Dutch government / Dutch Ministry of Social Affairs and Employment).
Received: 10 July 2020
Accepted: 31 January 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: This study was performed in accordance with the Declaration of Helsinki. The Medical Ethics Committee of the Netherlands Organisation for Applied Scientific Research TNO determined that no ethical approval was required for this study. All participants were asked to provide a written consent per mail and, prior to the interview per telephone, an additional verbal consent.
: Not applicable.
: The authors declare that they have no competing interests.