Funding for this research was provided by:
National Institutes of Health (P30AI64518, U01AI067854, D43CA153722, and D43TW06732)
Health Resources and Services Administration (T84HA21123)
Text and Data Mining valid from 2018-12-01
Received: 19 October 2017
Accepted: 19 December 2018
First Online: 29 December 2018
Change Date: 22 February 2019
Change Type: Correction
Change Details: Following publication of the original article , the authors reported that they have provided the wrong caption.
Ethics approval and consent to participate
: The study was approved by the Kilimanjaro Christian Medical University College (KCMUCo) Research Ethics Committee vide Ethical Clearance Certificate number 382.All participants signed the informed consent form after reading the information sheet before including them in the study.
: The authors declare no conflicts of interest.
: Consent for publication was not requested from participants because no individual participant’s data in any form such as images, voice recordings or videos are not included in this manuscript.
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