Received: 14 August 2020
Accepted: 1 December 2020
First Online: 7 December 2020
<!--Emphasis Type='Bold' removed-->Ethics approval and consent to participate
: Ethical clearance was obtained from the Ministry of Health, Khartoum, Sudan. Permission for conducting this study was obtained from the head department of surgery at the hospital. Confidentiality of the study participants was maintained.
: Not applicable
: The authors declare that they have no competing interests.