Text and Data Mining valid from 2018-12-01
Received: 7 December 2017
Accepted: 5 November 2018
First Online: 5 December 2018
Ethics approval and consent to participate
: Research clearance certificate was obtained from Medical Research Coordinating Council (MRCC) of National Institute for Medical Research (NIMR) and approval to conduct the study was given by the Ministry of Health, Community Development, Gender, Elderly and Children, Tanzania. Administrative approval was obtained from regional administrative officers and relevant authorities in districts, hospitals and health centers.
: The permission to publish was given by the Ministry of Health, Community Development, Gender, Elderly and Children, Tanzania.
: The authors declare that they have no competing interests.
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