Text and Data Mining valid from 2020-02-11
Received: 10 September 2019
Accepted: 5 February 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: Ethical clearance was obtained from the Ethical Review Committee of Wollo University, College of Medicine and Health Science. Written consent form was used to ask the willingness of pregnant women for their participation in this study. Permission letter was obtained from selected health institutions.
: Not applicable.
: The authors declare that they have no competing interests.