Funding for this research was provided by:
Text and Data Mining valid from 2020-01-13
Received: 3 October 2019
Accepted: 24 December 2019
First Online: 13 January 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Medical Ethics Committee Zuyderland-Zuyd Heerlen, the Netherlands (METCZ20180131). All participants gave verbal consent prior to starting the audio recording and recording was started only upon verbal consent from each participant in case of focus groups. As such, no documentation of verbal consent can be submitted.
: Not applicable.
: The authors declare that they have no competing interests.