Funding for this research was provided by:
Africa Centre of Excellence in Materials, Product Development & Nanotechnology; (MAPRONANO ACE)College of Engineering Design Art and Technology, Makerere University. (P151847IDA credit 5797-UG)
Received: 23 October 2020
Accepted: 2 March 2021
First Online: 18 March 2021
: Ethical Approval No.: MHREC1611 was granted by the Research and Ethics Committee for ethical review and approval, Mulago National Referral Hospital. The Research Ethics Committee waived the need for informed consent to use already coded archived samples in this study.
: Not applicable.
: The authors declare that they have no competing interests.