Hewett DG, Kaltenbach T, Sano Y, Tanaka S, Saunders B, Ponchon T, Soetikno R, Rex DK. Validation of a Simple Classification System for Endoscopic Diagnosis of Small Colorectal Polyps Using Narrow-Band Imaging. Gastroenterology. 2012 Sep;143(3):599-607.e1. doi: 10.1053/j.gastro.2012.05.006. Epub 2012 May 15. PMID: 22609383 [PubMed – indexed for MEDLINE]
