Received: 12 November 2018
Accepted: 8 April 2019
First Online: 24 April 2019
Ethics approval and consent to participate
: This study was reviewed and approved by the Amhara Public Health Institute. As it was a review of secondary data, support letter was found from the APHI research and technology transfer directorate to use the data for this research. We also requested permission from the central reception before extracting the data from the sample tracking log and from the LIS.
: Not applicable.
: The authors declare that they have no competing interests.
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