Received: 3 March 2019
Accepted: 14 May 2019
First Online: 21 May 2019
Ethics approval and consent to participate
: This study was approved by the National Institute for Medical Research Tanzania, Research number NIMR/HQ/R.8a/Vol.IX/2047 and Ethics and Research Committee of CUHAS/BMC with clearance number CREC/066b/2015. Written consent has been obtained from the participants. All information collected after obtaining consent from patients and was kept strictly confidential.
: Not applicable
: The authors declare that they have no competing interest.
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