Text and Data Mining valid from 2019-08-09
Received: 3 May 2019
Accepted: 2 August 2019
First Online: 9 August 2019
Ethics approval and consent to participate
: The Ethikkommission Nordwest- und Zentralschweiz (Basel, Switzerland) has approved the study (ProjectID 2018-01314), which is to be performed in accordance with the rules in the seventh and current form (2013) of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.