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Carpelan-Holmström M, Kruuna O, Scheinin T.Carpelan-Holmström M, et al.Surg Endosc. 2006 Sep;20(9):1353-9. doi: 10.1007/s00464-005-0217-3. Epub 2006 May 13.Surg Endosc. 2006.PMID: 16703440