Karim, Asima http://orcid.org/0000-0002-6288-0686
Qaisar, Rizwan
Article History
Received: 4 January 2020
Accepted: 11 May 2020
First Online: 16 May 2020
Ethics approval and consent to participate
: The study was approved by the institutional review board of University of Health sciences, Lahore. An informed written consent was obtained from the parents or legal guardians of children and adolescents recruited in this study.
: Not applicable.
: The authors have no competing interests to declare in relation to the work presented here.