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Article History

Received: 28 November 2018

Accepted: 7 February 2019

First Online: 4 March 2019

Ethics approval and consent to participate

: The study was approved by the local Ethic Committee (approval #13922, 13/04/2017).

: All the co-authors have read the manuscript and approved its submission to “Orphanet Journal of Rare Disease”.

: The authors declare that they have no competing interest.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.