Article History
Received: 12 July 2021
Accepted: 30 September 2021
First Online: 12 October 2021
Declarations
:
: The current study was conducted in accordance with Good Clinical Practice guidelines laid down in Declaration of Helsinki 1975 and was approved by the ethics committee of the Faculty of Medicine, Helwan University. Committee reference number is not applicable. An informed written consent was taken from all participants or from parents/guardians of patients under 16 years old.
: An informed written consent was taken from all participants or from parents/guardians of patients under 16 years old.
: The authors declare that they have no competing interests.