Text and Data Mining valid from 2018-07-04
Received: 4 May 2017
Accepted: 7 June 2018
First Online: 4 July 2018
: BM, AA, KT and TW University of Gondar College of medicine and health sciences, department of Midwifery. KZ Mekelle University, department of Midwifery College of health sciences.
: The study was approved by University of Gondar College of medicine and health sciences ethical review committee and informed verbal consent was obtained from all study participants which was accepted and approved by the ethical review committee.
: The authors declare that they have no competing interests.
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