Received: 12 November 2021
Accepted: 23 February 2022
First Online: 8 March 2022
: The authors declare no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors. All methods were performed in accordance with the declaration of Helsinki and approved by the Addis Ababa University, college of health sciences IRB (reference number 097/18/surg). Written informed consent was obtained from all legal guardians / parents of participants included in the study.
: Not required because no identifying images or clinical details of participants that compromise anonymity are included.
: All authors declare that we have no conflict of interest to disclose.