Received: 30 May 2018
Accepted: 19 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: Informed verbal consent was obtained from participants who participated in sub-analysis (validation study) of urine samples. Verbal consent was obtained as this was a part of large population screening programme conducted as a routine service and no personal data were obtained. Ethical clearance for the validation study was obtained from the Ethics Review committee of University of Peradeniya.
: Not relevant.