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Authors
Arega, Balew
Minda, Abraham
Mengistu, Getachew
Endale, Mulugeta
Agunie, Asnake
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Article History
Received: 18 December 2019
Accepted: 15 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: The study is based on a systematic review of published data and thus does not require ethical clearance
: Not applicable
: The authors declare that they have no competing interests.
