Text and Data Mining valid from 2018-10-26
Received: 18 June 2018
Accepted: 12 September 2018
First Online: 26 October 2018
Ethics approval and consent to participate
: The study protocols and amendments were approved by local independent ethics committees (IECs). Written informed consent/assent was obtained from all parents/participants of the control group at the time of their visit. The studies were conducted in accordance with the principles of the Declaration of Helsinki, amended in 2013. Our hospital ethics committee approved the study.
: Not applicable.
: The authors declare that they have no competing interests.
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