Received: 7 March 2020
Accepted: 26 April 2020
First Online: 4 June 2020
Ethics approval and consent to participate
: This study was ethically approved in September 2016 by the ethical committee at the Faculty of Medicine for Girls, Al-Azhar University; the committee reference number is not available. Verbal consent to participate in the study had been obtained from participants before participation in this study and this was approved by the ethical committee.
: Not applicable.
: The authors declare that they have no competing interests.