Funding for this research was provided by:
HIGHER EDUCATION COMISSION OF PAKISTAN (N/A)
Received: 15 May 2019
Accepted: 16 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Written permission were taken from the parents/guardians of study participants. Ethical approval was taken from the respective ethical committees of Pakistan Institute of Medical Sciences (PIMS), Benazir Bhutto Shaheed Hospital (BBH) and Internal Review Board (IRB) of COMSATS Institute of Information Technology, Islamabad.
: Not Applicable
: The authors declare that they have no competing interests.