Received: 17 August 2020
Accepted: 13 May 2021
First Online: 24 June 2021
: This study was approved by the Institutional Research Ethical Committee of Moi Teaching and Referral Hospital-Moi University School of Medicine (IREC-MTRH-MUSOM) on 14 June 2019 under the number <b>FAN:0003344</b>. All participants signed informed consent to participate in this study.
: Not applicable.
: There are no competing interests.