Funding for this research was provided by:
Intramural Research Department of the American Cancer Society
Text and Data Mining valid from 2018-11-14
Received: 14 May 2018
Accepted: 28 October 2018
First Online: 14 November 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the Institutional Review Board (IRB) of Addis Ababa University, College of Health Science with the registration number of 018/17/SPH and written informed consent has been taken from the study participants.
: Not applicable
: The authors declare that they have no competing interests.
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