Received: 10 December 2019
Accepted: 27 January 2021
First Online: 25 March 2021
Ethics approval and consent to participate
: Ethical approval was obtained from the institutional review board of surgery department, School of medicine, Addis Ababa University.
: Written informed consent was obtained from the patients for publication of this manuscript and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: The authors declare that all authors in its form approved this manuscript and that no competing interest exists.