Funding for this research was provided by:
Autour des Williams
Received: 12 February 2018
Accepted: 9 May 2019
First Online: 31 May 2019
Ethics approval and consent to participate
: Families of recruited patients gave written informed consent and the study was approved by the ethical committee of our institution (Comité de Protection des Personnes SUD-EST II: committee’s reference number: IRB 11263).
: All families provided written informed consent.
: All the authors declare no competing interests.
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