Text and Data Mining valid from 2019-10-28
Received: 5 May 2018
Accepted: 6 September 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: A written ethics approval #099 was granted in September 2017 by the COLLMAN’s research authority. Written informed consent was obtained from all participants.
: The informed consent (written and verbal) form included consent to participate and to publish.
: The authors declare that they have no competing interests.