Received: 6 April 2020
Accepted: 29 July 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: Permission to carry out the study and use of human materials (histology specimen) was sought from Uganda Cancer Institute and Makerere University College of Health Sciences School of Medicine Research Ethics Committee with reference #REC REF 2018–134. Each participant provided written informed consent.
: Not applicable.
: There are no competing interests.