Received: 7 February 2019
Accepted: 17 July 2019
First Online: 29 July 2019
Ethics approval and consent to participate
: Study protocol was approved by the Institutional Review Board of College of Medicine and Health Sciences, Wollo University. An informed verbal as well as written consent was obtained from each study participants. Moreover, confidentiality was assured for all the information provided and personal identifiers were not included on questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.