Received: 30 April 2019
Accepted: 16 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki and was approved by the local Ethics Committee (Comité de Protection des Personnes [CPP] Sud-Est VI). Written informed consent was obtained from the patients.
: Not applicable.
: The authors declare that they have no competing interests.