Received: 30 October 2017
Accepted: 9 January 2018
First Online: 17 January 2018
Ethics approval and consent to participate
: This study was approved by the Hopital Universitaire des Enfants Reine Fabiola Board of Ethics (CEH 15/17) and registered on ExternalRef removed as the study NCT03048071.
: Individuals are not identified in this report; therefore, specific consent for publication was not obtained.
: The authors declare that they have no competing interests.
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