Received: 13 March 2017
Accepted: 30 January 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: All study procedures were approved by the institutional review board of the Tel Aviv Medical Center (Helsinki Committee), and written parental informed consent was obtained for all participants.(0402-14-TLV).
: Not applicable
: The authors declare that they have no competing interests.
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