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Qvigstad E, Gulseth HL, Risstad H, le Roux CW, Berg TJ, Mala T, Kristinsson JA.Qvigstad E, et al. Among authors: gulseth hl.Int J Surg Case Rep. 2016;21:91-4. doi: 10.1016/j.ijscr.2016.02.033. Epub 2016 Feb 27.Int J Surg Case Rep. 2016.PMID: 26957187Free PMC article.