Received: 21 February 2021
Accepted: 14 April 2021
First Online: 24 April 2021
: All methods were performed following the relevant guidelines and regulations. Ethical approval was taken from the ethical committee of Al-Aleem Medical College, Gulab Devi Hospital, Lahore (GDEC/265/19). Being a retrospective study, informed consent was waived by the ethics committee of Al-Aleem Medical College, Gulab Devi Hospital.
: Not applicable.
: The authors declare that they have no competing interests.