Funding for this research was provided by:
Faculty of Medicine, Assiut University (013-29/6/2016)
Received: 4 November 2020
Accepted: 7 January 2021
First Online: 20 January 2021
Ethics approval and consent to participate
: The protocol of this study was approved by The Committee of Medical Ethics of the Faculty of Medicine, Assiut University, under number 17200080. Informed written consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.