Received: 25 October 2017
Accepted: 8 October 2018
First Online: 22 October 2018
: YMB is a pharmacologist and lecturer, AA is an assistant professor of clinical pharmacy at department of pharmacy, Wollo University. GA is a pharmacist at a hospital.
: The study has been approved by the ethical review committee of college of medicine and health sciences, Wollo University. The study participants have signed a written consent to participate in the study.
: Not applicable.
: All authors declare that they have no competing interests.
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