Text and Data Mining valid from 2019-07-17
Received: 13 March 2019
Accepted: 1 July 2019
First Online: 17 July 2019
Ethics approval and consent to participate
: To conduct this research, the research proposal was ethically approved by the research and ethical review committee of Bahir Dar University, College of Medicine and Health Sciences.
: Not applicable.
: The authors declare that they have no competing interests.