Received: 24 January 2020
Accepted: 16 July 2020
First Online: 20 July 2020
Ethics approval and consent to participate
: All aspects of the study protocol were authorized by the <i>Institutional Review Board of An-Najah National University</i> ((Protocol # May-14-2018) before initiation of this study<i>.</i> The permission for the collection of patient data was received from the <i>Palestinian Ministry of Health</i>, the agency responsible for the permission of research involving human subjects. Written consent was obtained from each patient prior to the interviews. We explained that the collected data would only be used for clinical research and its confidentiality will be preserved.
: Not applicable.
: The authors declare that they have no competing interests.