Received: 19 April 2018
Accepted: 4 February 2019
First Online: 6 March 2019
Ethics approval and consent to participate
: This study received approval from the institutional review board from Georges Pompidou University Hospital (IRB 00001072 - project n <sup>∘</sup> CDW _2014_0008) and the French data protection authority (CNIL - n <sup>∘</sup> 1922081).
: Not applicable.
: The authors declare that they have no competing interests.
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