Received: 15 June 2020
Accepted: 27 August 2020
First Online: 7 September 2020
Ethics approval and consent to participate
: The study was ethically approved by an institutional review board (IRB) of Hawassa University College of Medicine and health sciences (Ref No: IRB 100 09). Go-ahead permission obtained from Clinical and Academic Director Office of Hawassa University Comprehensive Specialized Hospital. All the study participants provided informed consent to participate in this study. All studies on humans described in the present manuscript were carried out with the approval of the responsible ethics committee and in accordance with national law and the Helsinki Declaration of 1975 (in its current, revised form).
: Not applicable.
: The authors declare that they have no competing interests.