Received: 13 March 2021
Accepted: 11 June 2021
First Online: 25 June 2021
: The study has been approved by the ethics committee of our university (Mansoura Faculty of Medicine, Mansoura University, Institutional Review Board Code No R/17.12.71) and has been performed following the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Informed written consents approved by ethical committee of Mansoura Faculty of Medicine were obtained from all individual participants or their legal guardians if under 16 years.
: The authors declare that they have no conflict of interest.