Received: 18 July 2019
Accepted: 20 July 2020
First Online: 31 July 2020
Ethics approval and consent to participate
: Ethical clearance to undertake this study was obtained from the Senate Research and Publications Committee of Muhimbili University of Health and Allied Sciences (MUHAS). Permission to conduct the study was sought from MNH, Mwananyamala and Temeke regional referral hospitals. Written informed consent were obtained from all study participants before enrollment into the study.
: Not applicable.
: The authors declare that they have no competing interests.