Article History
Received: 8 November 2018
Accepted: 5 July 2019
First Online: 12 July 2019
Ethical approval and consent to participate
: Ethical clearance was obtained from Debre Tabor University College of health science. Similarly oral permission was obtained from Chief Executive Officers (CEOs) of each health facilities studied.
: Not applicable.
: The authors declare that they have no competing interests.