Text and Data Mining valid from 2020-03-16
Received: 1 November 2019
Accepted: 9 March 2020
First Online: 16 March 2020
Ethics approval and consent to participate
: Ain-Shams University Hospitals ethics committee approval; (FMASU R59/2018). Informed consent to participate in the study was taken from all participants.
: The authors declare that they have no competing interests.