Received: 13 April 2020
Accepted: 11 November 2020
First Online: 13 January 2021
Ethics approval and consent to participate
: Ethical authorization was acquired from the Research Ethics Committee, Faculty of Medicine, Cairo University under number N-56-2016 on 22 April 2017.A stakeholder was enrolled in the study after giving his/her written informed consent to participate. Data confidentiality and informants’ identity were maintained throughout the study.
: Not applicable.
: The authors declare that they have no competing interests.