Received: 13 March 2017
Accepted: 17 December 2017
First Online: 15 January 2018
Ethics approval and consent to participate
: Clinical samples were used after obtaining the approval of the study by the Institutional Review Board of the Hospital Bichat, and all written informed consents from the enrolled subjects, in compliance with national legislation and the Code of Ethical Principles for Medical Research Involving Human Subjects of the World Medical Association (Declaration of Helsinki).
: Not applicable.
: The authors declare that they have no competing interests.
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