Text and Data Mining valid from 2019-11-20
Received: 29 May 2019
Accepted: 5 November 2019
First Online: 20 November 2019
Ethics approval and consent to participate
: The study was approved by College of Natural and Computational Science of Madda Walabu University. Ethical clearance was obtained from Bale Zone Health Office. Permission was obtained from each hospital administration. Both oral assent and written informed consent were obtained from the parents or guardians of the study subjects before administration of the study. Information of the study subjects and that of the parents or guardians of the study subjects were kept confidential.
: Not applicable.
: The authors declare that they have no competing interests.