Text and Data Mining valid from 2018-06-30
Received: 14 August 2017
Accepted: 5 June 2018
First Online: 30 June 2018
Ethics approval and consent to participate
: The medical ethics committee of the University Medical Center of Groningen (UMCG) granted a waiver for this study. All participants signed informed consent for participation, digital recording and the use of data.
: Not applicable as, according to Dutch law, it is not mandatory to ask the participants specific consent to use quotations.
: The authors declare that they have no competing interests.
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