Text and Data Mining valid from 2018-08-22
Received: 13 November 2017
Accepted: 13 August 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: This study protocol has been approved by the University Institute for Primary Care Research (IDIAP) Jordi Gol Health Care Ethics Committee (Code P16/046).
: Not applicable
: The authors declare that they have no competing interests.
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