Received: 1 July 2018
Accepted: 26 November 2018
First Online: 14 December 2018
Ethics approval and consent to participate
: The Ethics Committee of Lyon University Hospital (Comité d’Ethique, Hospices Civils de Lyon) approved the study under the number 17–207. Because of the retrospective observational nature of the study and the lack of any modification in patients’ management, the need for informed consent was waived with the authorization of the Ethics Committee of Lyon University Hospital (Comité d’Ethique, Hospices Civils de Lyon), which approved the study under the number 17–207.
: Not applicable.
: The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. No writing assistance was utilized in the production of this manuscript.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.