Text and Data Mining valid from 2019-06-25
Received: 14 May 2019
Accepted: 11 June 2019
First Online: 25 June 2019
Change Date: 20 November 2019
Change Type: Correction
Change Details: Figure 3 corrected.
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This study was approved by the ethics committee of the “Hopital Neurologique de Lyon”.
: All patients signed an informed consent form with the surgeon prior to the procedure.