Fig. 2From: Barrett’s oESophagus trial 3 (BEST3): study protocol for a randomised controlled trial comparing the Cytosponge-TFF3 test with usual care to facilitate the diagnosis of oesophageal pre-cancer in primary care patients with chronic acid refluxBEST3 trial design overview showing both BEST3 anonymous data collection steps (green) and intervention, Cytosponge™-TFF3 test or upper GI endoscopy related procedures (blue)Back to article page