Text and Data Mining valid from 2020-04-19
Received: 4 January 2019
Accepted: 13 April 2020
First Online: 19 April 2020
Ethics approval and consent to participate
: The study was approved by the Maseno University Ethics Review Committee. Informed written consent was obtained from the all study participants prior to carrying out the study.
: The study participants provided permission to the investigators to publish the work.
: The authors declare that they have no competing interests.