PWE-216 Diagnostic accuracy for detection of dysplasia in Barrett's oesophagus using narrow band imaging with magnification improves after a short training session in those with prior exposure to NBI but not in novices
PWE-216 Diagnostic accuracy for detection of dysplasia in Barrett's oesophagus using narrow band imaging with magnification improves after a short training session in those with prior exposure to NBI but not in novices