Article History
Received: 19 November 2020
Accepted: 15 January 2021
First Online: 17 February 2021
Ethics approval and consent to participate
: Verbal consent was obtained from parents of the JIA children and controls (as most of them were illiterates) and were approved by the ethical committee of the Faculty of Medicine, Beni-Suef University. The reference number is FMBSUREC/08012019/Gehad Ramadan.
: All participants and/or their parents have approved the publication of the manuscript.
: The authors declare that they have no competing interests.