Funding for this research was provided by:
Received: 24 May 2020
Accepted: 25 June 2020
First Online: 4 July 2020
Ethics approval and consent to participate
: Institutional Review Board approval was obtained for this study (University of Pittsburgh, PA, USA PRO18010404; University of Witwatersrand, Johannesburg, South Africa clearance certificate M191003). All readers for the OPT provided informed consent to participate.
: Liron Pantanowitz is a consultant for Hamamatsu and serves on the medical advisory board for Ibex. Beomseok Suh and Kyunghyun Paeng work for Lunit. Every effort was made to avoid a conflict of interest that could potentially influence the study conclusions.