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Buerlein RCD, Wang AY.Buerlein RCD, et al.Gastrointest Endosc Clin N Am. 2019 Apr;29(2):351-367. doi: 10.1016/j.giec.2018.11.006. Epub 2019 Feb 2.Gastrointest Endosc Clin N Am. 2019.PMID: 30846158Review.