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Article History

Received: 29 September 2020

Accepted: 2 March 2021

First Online: 10 March 2021

Declarations

:

: Written informed consent from parents of the patients was taken. Ethical approval was received from the Institutional Review Board, King Edward Medical University, Lahore, PAK (Letter No. 55/RC/KEMU, January 16, 2020).

: Not applicable.

: The authors declare that they have no competing interests.