Text and Data Mining valid from 2019-11-06
Received: 2 June 2019
Accepted: 14 October 2019
First Online: 6 November 2019
Ethics approval and consent to participate
: The study proposal was approved by the Research Council of the Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, and an informed written consent was obtained from the parents of each participant.
: “Not applicable”.
: The authors declare that they have no competing interests.