Text and Data Mining valid from 2019-05-09
Received: 9 March 2019
Accepted: 6 May 2019
First Online: 9 May 2019
Ethical approval and consent to participate
: The study was approved by Ifakara Health Institutional Review Board (IHRDC/IRB/No.A-32) and the National Institute of Medical Research (NIMR/HQ/R.8a/Vol. IX/764). There was no anticipated risk to human participants because the study was conducted under controlled settings.
: Permission to publish this study was granted by National Institute of Medical Research (Ref: NIMR/HQ/P.12 VOL XXVI/71).
: The authors declare that they have no competing interests.