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Bhangu A; RIFT Study Group on behalf of the West Midlands Research Collaborative.Bhangu A, et al.Br J Surg. 2020 Jan;107(1):73-86. doi: 10.1002/bjs.11440. Epub 2019 Dec 3.Br J Surg. 2020.PMID: 31797357Free PMC article.Review.