Received: 12 March 2019
Accepted: 3 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from an ethical review board of Mekelle University, College of Health Sciences and Department of Public Health. Informed consent from the study participants was waived by the Mekelle university ethical review board. Permission was obtained from Ayder Comprehensive Referral Hospital, Mekelle. The confidentiality of information regarding patients involved in this study was maintained by keeping all patients records within the study site and avoiding of identifying study participants by name on any documentation, report or publication resulting from data collected in this study.
: Not applicable.
: The authors declare that they have no competing interests.