Received: 12 December 2018
Accepted: 26 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: The ethical approval for the study was obtained from the Senate Research and Publication Committee, the Institutional Review Board of Muhimbili University of Health and Allied Sciences (MUHAS). Permission to do the study was obtained from the Muhimbili Medical Research and Ethics Committee. Written informed consent was obtained from all patients before being enrolled in the study. Patients were managed based on results of clinical and laboratory investigations.
: Not applicable
: The authors declare that they have no competing interests.