Text and Data Mining valid from 2018-08-02
First Online: 2 August 2018
Compliance with Ethical Standards
: This retrospective study was approved on June 27, 2017 by the local institutional review board (IRB) and the Ethics Committee (CPP Est III).
: The authors declare that they have no conflict of interest.
: For this type of study, formal consent is not required. Informed consent was obtained from all individual participants included in the study.