Additional chromoendoscopy for colorectal lesions initially diagnosed with low confidence by magnifying narrow-band imaging: Can it improve diagnostic accuracy? Utsumi T, Iwatate M, Sunakawa H, Teramoto A, Hirata D, Hattori S, Sano W, Hasuike N, Ichikawa K, Fujimori T, Sano Y, Digestive endoscopy, 2018 Apr;30 Suppl 1:45-50. doi: 10.1111/den.13055. Review.