Received: 27 September 2021
Accepted: 1 September 2022
First Online: 8 September 2022
: An ethical approval letter was obtained from the ethical review committee of Debre Berhan University, College of Medicine and Health science with protocol number P012. The committee has also approved thumb-printed consent from illiterate mothers. A further formal letter was written to the study hospitals. After the data collectors explained the objective, potential benefits, and risks of the study, written informed consent was obtained from the study subjects. Illiterate mothers were asked to thumbprint on the consent form. Confidentiality and anonymity were also assured. All methods were performed per the declaration of Helsinki ethical principles.The Debre Berhan University, College of Medicine and Health science ethical review committee approved the procedure for thumb-printed consent from illiterate mothers.
: Not applicable.
: The authors declare that there are no conflicts of interest.