Text and Data Mining valid from 2019-10-16
Received: 26 March 2019
Accepted: 26 September 2019
First Online: 16 October 2019
Ethics approval and consent to participate
: Ethics clearance was sought through the Tanzanian National Institute for Medical Research (NIMR) (NIMR/HQ/R.8a/Vol.IX/1515) and the Ifakara Institutional Review Board (IHI/IRB/No: 24–2012) in Tanzania and was registered by the Data Protection Official for Research at the Norwegian Social Science Data Services (NSD). Informed consent was obtained. We have depersonalized data by labeling facilities by letters, and informants by titles.
: Not applicable.
: The authors declare that they have no competing interests.