Received: 17 March 2021
Accepted: 28 July 2021
First Online: 11 August 2021
: This study was approved by the ERC at Jaramogi Oginga Odinga Teaching and referral Hospital, Kisumu, Kenya and and the University of California, San Francisco, USA. In addition, the informed consent was obtained from all the study participants and all the methods were used in accordance with the guidelines and regulations of National Commision for Science and Technology and Innovation, Kenya.
: Not applicable.
: All the authors declared no conflict of interest.