Article History
Received: 28 August 2018
Accepted: 19 November 2018
First Online: 3 December 2018
Ethics approval and consent to participate
: The data stem from an administrative database and the data were anonymous. Ethical approval was not necessary for this study as the professional code of doctors states that the collection of anonymous data requires no ethical approval [].
: Not applicable
: JS is general practitioner; the other authors declare that they have no competing interests.
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