Received: 7 November 2018
Accepted: 19 June 2019
First Online: 2 July 2019
Ethics approval and consent to participate
: As the study was retrospective in nature, informed consent was not required from patients’ parents or legal guardians; however, all records were anonymized prior to analysis. The approved Local Research and Publication Committee of the Gambo General Hospital and the Health Unit and Ethical Review Committee of the Ethiopian Catholic Secretary approved this waiver as well as the protocol and the study (permit number: GH/MSMHF/710).
: Not applicable.
: The authors declare that they have no competing interests.